Used Safety Cabinet for sale (13,945)

Condition: not inspected (used), functionality: unexamined, total length: 730 mm, total width: 700 mm, total height: 1,000 mm, overall weight: 350 kg, No minimum price – guaranteed sale to the highest bidder! Placing a bid obligates timely collection either between 11.05.2026 and 13.05.2026 or between 18.05.2026 and 21.05.2026! Auction of a workshop drawer cabinet with the following contents: calipers, limit plug gauges, twist drills, tool holders, taps, collets, hand tools, assorted tools from the manufacturer Eppinger. MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 730 x 700 x 1,000 mm Weight: 350 kg External reference: Pieper – Lot 104 Bedpfxoynz Sce Aa Eswi

Condition: not inspected (used), functionality: unexamined, total length: 800 mm, total width: 750 mm, total height: 1,000 mm, overall weight: 250 kg, No minimum price – guaranteed sale to the highest bidder! Bedpfxeynk Awe Aa Ejwi Placing a bid obligates timely collection either between 11.05.2026 and 13.05.2026 or between 18.05.2026 and 21.05.2026! Auction of a workshop drawer cabinet with the following contents: Ring gauges Dial indicators Digital dial indicators Digital calipers MACHINE DETAILS Dimensions & Weight Dimensions (L x W x H): 800 x 750 x 1,000 mm Weight: 250 kg External reference: Pieper - Lot 166

Condition: new, Year of construction: 2012, Electric power transmission cabinet, Electrical distribution cabinet, Electrical cabinet 600 kW, AEG Thyristor, AEG Thyro-A, 2A 400-495 HFRL1, Thyristor converter, Power controller, Electric power transmission cabinet for furnace, Used machine Manufacturer: Amarc srl Type: 120254; 3058 Year: 2012 Dimensions: 1800 x 515 x 2130 mm Weight: 400 kg Cabinet: 400 V; 3-phase; 50 Hz; 868 A; 600 kW Power transmission system and distribution AEG Thyro-A 2A 400-495 HFRL1 (Thyristor) AEG Thyro-A: Thyristor 400 V 495 A Cooled Bwodpforby Uvox Aa Eei Power regulator Load supervision on analog outputs

Condition: good (used), Light barrier, safety light curtain, reflection light barrier, light barrier, safety light curtain, reflection light barrier, photoelectric sensor, light sensor, light grid Bwodpfxotuyb Hj Aa Eji -Manufacturer: ABB Jokab Safety, Light Curtain FRII -4-14-1200 -Protective field height: 1190 mm -Voltage: 24 VDC -Number: 2x module available -Price per piece -Dimensions: 1250/40/H50 mm -Weight: 2.6 kg/piece

Condition: good (used), Aluminium measuring table with 50 mm aluminium plate and drawer cabinet Type: Measuring table with aluminium measuring plate Dimensions: 80 cm wide, 75 cm deep and 95 cm high (2.26 cm high with construction) Aluminium plate: 5 cm thick, with mounting threads Bwodpfx Ajhvmkiea Eji Manufacturer drawer cabinet: Garant (Hoffmann Group) Number of drawers: 2 Material: aluminium Condition: used complete factory lock, large selection of storage platforms, pallet racks, shelf racks, paternosters. High quality industrial machines, lathes, grinding machines, hand machines. Further articles - new and used - you will find in our shop! International shipping costs on request!

Condition: used, functionality: fully functional, Good working condition. Please check out our other listings as well. Bsdpsupx E Ujfx Aa Eswi

Condition: good (used), Drawer cabinet, tool cabinet, steel cabinet, workshop cabinet -Width: 450 mm -Depth: 630 mm -Height: 1035 mm Bwedpfeb A Iukex Aa Eei -Internal drawer dimensions: 330 x 630 mm -Drawer heights: 260 mm -Weight: 216 kg

Condition: not inspected (used), functionality: unexamined, total length: 1,200 mm, total width: 770 mm, total height: 1,200 mm, overall weight: 400 kg, No reserve price – guaranteed sale to the highest bidder! TECHNICAL DETAILS Table diameter: 350 mm Table dimensions: 600 x 210 mm Bwsdpfx Ajxqm Eroa Eoi Number of T-slots: 4 Table dimensions: 600 x 200 mm Number of T-slots: 4 MACHINE DETAILS Dimensions (L x W x H): 1,200 x 770 x 1,200 mm Weight: 400 kg EQUIPMENT Collets Boring heads Various clamping devices Counter-holder Rotary table Milling tables All accessories suitable for DECKEL tool milling machines

Condition: not inspected (used), functionality: unexamined, total length: 1,370 mm, total width: 750 mm, total height: 1,100 mm, overall weight: 300 kg, No reserve price – guaranteed sale to the highest bidder! The machine is being auctioned off as part of a business liquidation. Placing a bid obligates timely collection between 26.01.2026 and 29.01.2026! Included: Boring heads Boring tools Collets High-speed milling head Counterholder Additional clamping equipment The accessories are suitable for DECKEL tool milling machines. Bwodpexqm Dusfx Aa Eji MACHINE DETAILS Dimensions (L x W x H): 1,370 x 750 x 1,100 mm Weight: 300 kg

Condition: like new (used), Chanber size: 280x180x500mm upper 280x130x450mm lower Bsdpsd Sm Dijfx Aa Eowi Max temperature: 700 C °

Condition: good (used), Safety relay, safety control, emergency stop switchgear -Manufacturer: pilz Bjdjcc Hulspfx Aa Eowi -Type: P2HZ -Number: 1x relays available -Price: per piece -Dimensions: 90/80/H110 mm -Weight: 0.59 kg

Condition: new, Year of construction: 2021, functionality: fully functional, warranty duration: 12 months, !! Stock items, we are happy to advise you !! New////: Sick Safety Relay FX3-XTIO84002 Bwjdpfxjrlm Itj Aa Esi

Condition: used, Metal cabinet, workshop cabinet, storage cabinet with 2 sliding doors VIDMAR BORIK 2 sliding doors with roller guide 6 rotary drawers Drawer dimensions: Depth = 616/480 mm, Width = 380 mm, Height = 20/45 mm Width: 1440 mm Depth: 490 mm Height: 1000 mm - Rotary drawers height-adjustable in perforated grid - Without key Weight: approx. 150 kg Bwjdpsypw Hxofx Aa Eoi

Condition: used, This listing is for the Foster EcoPro EP700H Pro Cabinet Freezer Bodpfx Aaoyrf Tlj Eewi The unit is in full working condition and is ready for immediate use The Foster EcoPro EP700H Pro Cabinet Freezer is a professional laboratory-grade freezer designed for secure and efficient long-term sample storage. It provides stable low-temperature performance, energy efficiency, and a spacious interior suitable for scientific, medical, and research applications. Built with durable materials and advanced cooling technology, it ensures sample integrity while maintaining quiet and reliable operation. Ideal for laboratories, hospitals, and research facilities.

Condition: used, total length: 715 mm, total width: 720 mm, total height: 1,000 mm, overall weight: 100 kg, number of drawers: 7, Drawer cabinet LISTA 7 drawers: 2 drawers 600 x 600 mm x Height 50 mm 1 drawer 600 x 600 mm x Height 70 mm 3 drawers 600 x 600 mm x Height 120 mm 1 drawer 600 x 600 mm x Height 170 mm Length: 715 mm Depth: 720 mm Total height: 1000 mm Bedpfx Aaoyrf S Ij Eowi Weight: approx 100 kg

Condition: excellent (used), Binder Type: Binder ED 53 For sale is a high-quality BINDER ED 53 drying oven, Made in Germany. This unit is ideally suited for laboratory, workshop, research, electronics, material testing, or hobby applications that require constant temperatures. Features: - Precise digital temperature display - Robust industrial-grade quality - Even heat distribution - Made in Germany - Ideal for professional applications Capabilities: The BINDER ED 53 is a precision drying oven with natural convection. It is used for: - Drying samples and materials - Heating components - Tempering of workpieces - Curing paints/coatings - Material testing at constant temperatures - Laboratory applications in schools, research, or industry The temperature can be set digitally and is reliably regulated. Thanks to its high-quality insulation and construction, the unit operates consistently and stably. Technical Data: - Model: BINDER ED 53 - Temperature range: up to 300 °C - Rated power: 1.20 kW - Connection: 230 V / 1N~ - Current draw: approx. 5.3 A - Frequency: 50–60 Hz - Protection class: IP20 - Temperature protection: DIN 12880 - Device class: 2.0 - Interior volume: approx. 53 liters Bjdpfoynh E Aex Aa Eswi - Approx. dimensions: - External: approx. 63 × 63 × 57 cm (W × H × D) - Internal: approx. 40 × 40 × 33 cm - Weight: approx. 40–45 kg Important Note: "The table shown in the photos is not included in the sale." Condition: used Scope of delivery: (see photo) (Subject to changes and errors in the technical data. All data provided without liability!) For further questions, feel free to contact us by phone.

Condition: used, overall weight: 36,000 kg, axle configuration: 3 axles, first registration: 12/2019, loading space length: 13,600 mm, loading space width: 2,470 mm, loading space height: 2,800 mm, loading space volume: 97 m³, Equipment: ABS, Schmitz Cargobull SCB S3T Flatbed Curtain Sider with Lift Axle, Edscha safety roof Int. No. for inquiries: 0226140 * Condition: very good * Permissible total weight: 36.00 t * Safety roof * Edscha sliding roof system * Lifting roof * First registration: 12/2019 Bjdpfx Aeyq Uiysa Ejwi * Storage box on right side / Aluminium * Spare wheel holder * ABS * EBS * 3 axles, air suspension * Disc brakes * Lift axle Cargo area dimensions: Length: 13,600 mm Width: 2,470 mm Height: 2,800 mm Tyres: 1st axle: 385 / 55 R 22.5, 30% tread, air suspended lift axle 2nd axle: 385 / 55 R 22.5, 30% tread, air suspension 3rd axle: 385 / 55 R 22.5, 30% tread, air suspension ----Price: 14,900 EUR + 19% VAT For further questions, you can reach us at the following phone numbers: * We speak: German, English, French, Polish, and ????? Subject to errors, omissions and prior sale.

Condition: used, overall weight: 36,000 kg, axle configuration: 3 axles, first registration: 03/2013, loading space length: 13,600 mm, loading space width: 2,490 mm, loading space height: 2,800 mm, loading space volume: 95 m³, Equipment: ABS, Schmitz Cargobull SCB S3T safety roof, Edscha, disc brakes Int. inquiry number: 0226193 * Condition: very good * Permissible total weight: 36.00 t * Safety roof * Edscha sliding roof system * Lifting roof * First registration: 03/2013 * Storage box, right side / aluminium * Spare wheel holder * ABS * EBS * 3 axles, air suspended * Disc brakes Cargo area dimensions: Length: 13,600 mm * Width: 2,470 mm * Height: 2,800 mm Tyres: 1st axle: 385 / 65 R 22.5, 30%, air suspended 2nd axle: 385 / 65 R 22.5, 30%, air suspended 3rd axle: 385 / 65 R 22.5, 30%, air suspended ----Price: €7,900 + 19% VAT Bwedjyq Uiajpfx Aa Esi For further questions, please contact us at the following phone numbers: * We speak: German, English, French, Polish, and ????? Subject to errors, misprints, and prior sale.

Condition: new, power: 132 kW (179.47 HP), fuel type: diesel, empty load weight: 2,235 kg, maximum load weight: 1,265 kg, overall weight: 3,500 kg, tire size: 215/75R16C, axle configuration: 4x2, wheelbase: 4,035 mm, CO₂ emissions: 166 g/km, fuel consumption (urban): 7.7 l/100km, fuel consumption (extra-urban): 5.9 l/100km, fuel consumption (combined): 6.6 l/100km, color: white, gearing type: mechanical, suspension: steel, number of seats: 3, total length: 6,363 mm, loading space volume: 15 m³, loading space length: 4,070 mm, loading space width: 1,870 mm, loading space height: 1,932 mm, Year of construction: 2025, front tire size: 215/75R16C, rear tire size: 215/75R16C, Equipment: ABS, air conditioning, airbag, cabin, central locking, cruise control, electronic stability program (ESP), fog lights, immobilizer system, low noise, onboard computer, second-hand vehicle warranty, soot filter, traction control, Fiat Ducato Panel Van L5H2 (now L4H2 for Series 10) High Roof 2.2MJ 132kW/180HP Vehicle in stock, available immediately! Latest Series 10 model (9.2)! Syncom: 5.2 Paint: 549 White MAXI version with 16-inch wheels and large brake system Towing capacity: 3,000kg Cargo area dimensions: 4,070 x 1,870 x 1,932 mm (L x W x H) | Load volume: 15 m³ Gross vehicle weight: 3,500kg 025 Air conditioning AYZ Visibility Package 051 Rain and light sensor LPZ Fog lights with static cornering function 2PX 5'' infotainment system with color display, DAB radio, Bluetooth interface + rearview camera 245 steering wheel radio remote control NHR Cruise control with speed limiter 619 rear wing doors, 260-degree opening 049 steel bulkhead 077 double leaf spring on rear axle 041 electrically adjustable and heated exterior mirrors 508 rear parking sensors 835 overhead storage compartment 293 dual passenger seat with table 132 Comfort driver's seat with center armrest + lumbar support 173 Black crepe fabric 500 driver airbag 502 passenger airbag 5F4 Safety package Electronic stability control: - Crosswind assist - Trailer stability assist - Post collision braking - Rollover mitigation - Traction control (ASR) - Hydraulic brake assist (HBA) - Hill start assist - Adaptive load control (LAC) Safety kit: - Emergency braking assistant (pedestrian and cyclist detection) - Lane keep assist - Traffic sign recognition - Drowsiness warning - Intelligent speed assistant 5EM Darkened headlights 4DH 980 Full-size spare wheel with on-board tools 01P acoustic rear pedestrian warning 5DE Start & Stop system 0AA Ecopack with Stop&Start system incl. activation switch, intelligent alternator (200 A), electric fuel pump 806 Heated fuel filter 31R Short manual “QUICK GUIDE” 361 Side wall lining in cargo area up to belt height 6-speed manual transmission, ABS with EBD, ESC, ASR, HBA, electric windows, particulate filter, central locking with remote control. We would be happy to make you an offer. Bodpfx Ajx Nhxgoa Eowi

Condition: used, mileage: 10 km, power: 132 kW (179.47 HP), first registration: 11/2025, fuel type: diesel, empty load weight: 2,235 kg, maximum load weight: 1,265 kg, overall weight: 3,500 kg, tire size: 215/75R16C, axle configuration: 4x2, wheelbase: 4,035 mm, next inspection (TÜV): 11/2027, CO₂ emissions: 166 g/km, fuel consumption (urban): 7.7 l/100km, fuel consumption (extra-urban): 5.9 l/100km, fuel consumption (combined): 6.6 l/100km, color: white, gearing type: mechanical, suspension: steel, number of seats: 3, total length: 6,363 mm, loading space volume: 15 m³, loading space length: 4,070 mm, loading space width: 1,870 mm, loading space height: 1,932 mm, Year of construction: 2025, front tire size: 215/75R16C, rear tire size: 215/75R16C, Equipment: ABS, air conditioning, airbag, cabin, central locking, cruise control, electronic stability program (ESP), fog lights, immobilizer system, low noise, onboard computer, second-hand vehicle warranty, soot filter, traction control, Fiat Ducato Panel Van L5H2 (now L4H2 for Series 10) High Roof 2.2MJ 132kW/180HP Vehicle in stock, available immediately! Latest Series 10 model (9.2)! Syncom: 5.2 Paint: 549 White MAXI version with 16-inch wheels and large brake system Towing capacity: 3,000kg Cargo area dimensions: 4,070 x 1,870 x 1,932 mm (L x W x H) | Load volume: 15 m³ Gross vehicle weight: 3,500kg 025 Air conditioning AYZ Visibility Package 051 Rain and light sensor LPZ Fog lights with static cornering function 2PX 5'' infotainment system with color display, DAB radio, Bluetooth interface + rearview camera 245 steering wheel radio remote control NHR Cruise control with speed limiter 619 rear wing doors, 260-degree opening 049 steel bulkhead 077 double leaf spring on rear axle 041 electrically adjustable and heated exterior mirrors 508 rear parking sensors 835 overhead storage compartment 293 dual passenger seat with table 132 Comfort driver's seat with center armrest + lumbar support 173 Black crepe fabric 500 driver airbag 502 passenger airbag 5F4 Safety package Electronic stability control: - Crosswind assist - Trailer stability assist - Post collision braking - Rollover mitigation - Traction control (ASR) - Hydraulic brake assist (HBA) - Hill start assist - Adaptive load control (LAC) Safety kit: - Emergency braking assistant (pedestrian and cyclist detection) - Lane keep assist - Traffic sign recognition - Drowsiness warning - Intelligent speed assistant 5EM Darkened headlights 4DH 980 Full-size spare wheel with on-board tools 01P acoustic rear pedestrian warning 5DE Start & Stop system 0AA Ecopack with Stop&Start system incl. activation switch, intelligent alternator (200 A), electric fuel pump 806 Heated fuel filter 31R Short manual “QUICK GUIDE” 361 Side wall lining in cargo area up to belt height 6-speed manual transmission, ABS with EBD, ESC, ASR, HBA, electric windows, particulate filter, central locking with remote control. We would be happy to make you an offer. Bsdpfxex Nhxms Aa Eswi

Condition: used, mileage: 10 km, power: 132 kW (179.47 HP), first registration: 11/2025, fuel type: diesel, empty load weight: 2,235 kg, maximum load weight: 1,265 kg, overall weight: 3,500 kg, tire size: 215/75R16C, axle configuration: 4x2, wheelbase: 4,035 mm, next inspection (TÜV): 11/2027, CO₂ emissions: 166 g/km, fuel consumption (urban): 7.7 l/100km, fuel consumption (extra-urban): 5.9 l/100km, fuel consumption (combined): 6.6 l/100km, color: white, gearing type: mechanical, suspension: steel, number of seats: 3, total length: 6,363 mm, loading space volume: 15 m³, loading space length: 4,070 mm, loading space width: 1,870 mm, loading space height: 1,932 mm, Year of construction: 2025, front tire size: 215/75R16C, rear tire size: 215/75R16C, Equipment: ABS, air conditioning, airbag, cabin, central locking, cruise control, electronic stability program (ESP), fog lights, immobilizer system, low noise, onboard computer, second-hand vehicle warranty, soot filter, traction control, trailer coupling, Fiat Ducato Panel Van L5H2 (now L4H2 in Series 10) High Roof 2.2MJ 132kW/180HP – Vehicle in stock and available immediately! Latest Series 10 (9.2) model! Syncom: 5.2 Paint: 549 white. MAXI version with 16-inch wheels and large brake system. Towing capacity: 3,000 kg. Cargo area dimensions: 4,070 x 1,870 x 1,932 mm (L x W x H). Load volume: 15 m³. Gross Vehicle Weight: 3,500 kg. Features include: • Air conditioning (025) • AYZ Visibility package • Rain and light sensor (051) • Fog lights with static cornering light (LPZ) • 5'' infotainment system with color display, DAB radio, Bluetooth interface + rearview camera (2PX) • Steering wheel radio controls (245) • Cruise control with speed limiter (NHR) • Rear hinged doors with 260° opening (619) • Steel partition wall (049) • Double-leaf spring rear axle (077) • Electrically adjustable and heated exterior mirrors (041) • Rear parking sensors (508) • Overhead storage compartment (835) • Dual passenger bench with folding table (293) • Comfort driver's seat with armrest + lumbar support (132) • Black crepe fabric upholstery (173) • Driver airbag (500) • Passenger airbag (502) 5F4 Safety package (Electronic Stability Control): - Crosswind assist - Trailer stability control - Post collision braking - Rollover mitigation - Traction control (ASR) - Hydraulic brake assist (HBA) - Hill start assist - Adaptive load control (LAC) Safety kit: - Emergency brake assist (pedestrian and cyclist detection) - Lane keeping assist - Traffic sign recognition - Drowsiness alert - Intelligent speed limiter Other features: • Tinted headlights (5EM) • Full-size spare wheel with tool kit (4DH 980) • Acoustic pedestrian reversing warning (01P) • Start & Stop automatic (5DE) • Ecopack with Stop&Start system including activation switch, smart alternator (200A), electric fuel pump (0AA) • Heated fuel filter (806) • ‘QUICK GUIDE’ short instruction manual (31R) • Side wall cladding up to belt height in the load area (361) Towbar (3 tons) Bodpfsx Nhxasx Aa Eswi Extra charge for 3.5 tons net: €500 (to be retrofitted) 6-speed manual transmission, ABS with EBD, ESC, ASR, HBA, electric windows. Perfect for tradesmen, delivery services, and transport requirements requiring maximum cargo space and payload, coupled with the latest safety and comfort features.

Condition: not inspected (used), functionality: unexamined, total length: 730 mm, total width: 700 mm, total height: 1,000 mm, overall weight: 300 kg, No reserve price – guaranteed sale to the highest bidder! Placing a bid obligates you to collect the item within the specified period, either between 11.05.2026 and 13.05.2026 or between 18.05.2026 and 21.05.2026! Bodpfx Aajym Ud Ne Eowi Auction of a workshop drawer cabinet including the following contents: - Indexable inserts - Countersinks - Lathe tool holders - Internally cooled drills - Collets in various sizes - Outside micrometers - Digital calipers - HAINBUCH collets - Manual clamps - Various open-end spanners - Allen keys MACHINE DETAILS Dimensions & weight: Dimensions (L x W x H): 730 x 700 x 1,000 mm Weight: 300 kg External reference: Pieper – Lot 33

Condition: used, Dimensions (L/W/H) 1430x780x980 mm Number of drawer 10 Stück Number of floors . 0 Width of floors . mm Depth of floors . mm The tech. Data are manufacturer or operator information and therefore non- binding. We reserve the right to prior sale; Our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop Bwodpfx Aaeyqwbfe Eji If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Your Markus Hirsch Team

Condition: used, Number of floors . 0 Width of floors . mm Depth of floors . mm 1950x930x400 4 pieces Without contents The technical specifications are provided by the manufacturer or operator and are therefore non-binding for us. We reserve the right to sell the machines prior to purchase; our terms and conditions of sale apply exclusively. About us More than 400 of our own machines in stock Over 15,000 m² of storage space, 70 t crane capacity More than 10,000 items and accessories for your workshop If you are interested in selling machines, production lines, or your business, please contact us. You can find further offers on our website. Tours are possible by appointment. We look forward to your visit. Bwodoyqr Slepfx Aa Esi Your Markus Hirsch Team

Year of construction: 2015, condition: excellent (used), functionality: fully functional, Good day, We are pleased to offer, without obligation, a pre-owned forced air drying oven / drying cabinet from Binder, model FD 53. Manufacturer: BINDER GmbH, Germany Model: FD 53 Article number: 9010-0082 Year of manufacture: 2015 Temperature range: +5°C above ambient to 300°C Heating-up time to 70°C: approx. 7 min Heating-up time to 150°C: approx. 24 min Heating-up time to 300°C: approx. 60 min Spatial temperature deviation at 150°C: approx. 6.7 +/- K Interior volume: 53 L Internal dimensions: 400 x 400 x 340 mm (W x H x D) External dimensions: 640 x 660 x 630 mm Max. number of shelves: 5 units Shelf dimensions: 385 x 300 mm (W x D) Max. load per shelf: 15 kg Permissible total load: 40 kg Weight (empty): 44 kg Electrical supply: 230V, 50/60 Hz Current consumption: approx. 5.3 A Rated power: 1.2 kW Energy consumption at 70°C: approx. 172 W Energy consumption at 150°C: approx. 429 W Energy consumption at 300°C: approx. 951 W Temperature controller: Microprocessor PID controlled Safety class: 2 (DIN 12880) Controller function (timer): 0–99 hours Areas of application: These units are suitable for precise temperature control of non-hazardous materials, as well as for drying and heat treatment of solid or powdered materials and bulk goods by means of heat input. The ovens can also be used for drying items such as glassware and for hot storage of liquids in containers. Note: The forced air drying oven / drying cabinet is in good condition, fully functional, and can be tested under power in our workshop. Note: Bwedpfjypv Ihex Aa Esi The above technical data is taken from the manufacturer’s operating manual, brochures, or other sources. We cannot guarantee the accuracy and completeness of this information. Scope of delivery: 1 x Forced Air Drying Oven / Drying Cabinet, Manufacturer: BINDER GmbH, Model FD 53 We would be pleased if this machine is of interest to you. Your Service Team Mertens & Frowein GmbH