Home
Supplier Discovery
Instruments & Meters
Test Machine
Testing Machine Equipments Factories & Companies
Filter
Category
Construction & Decoration
Electrical & Electronics
Manufacturing & Processing Machinery
Metallurgy, Mineral & Energy
Transportation
More
Management Certification
ISO9001:2008
ISO14001:2004
Others
ISO9001:2015
ISO14001:2015
More
R&D Capacity
OEM
ODM
Own Brand
Others
Annual Revenue
<1 Million USD
1 ~ 2.5 Million USD
2.5 ~ 5 Million USD
5 ~ 10 Million USD
10 ~ 50 Million USD
More
No.of Employees
Less than 5 People
5-50 People
51-200 People
201-500 People
501-1000 People
More
Province & Region
Anhui
Beijing
Chongqing
Fujian
Gansu
More
about testing machine equipments
Technological Innovation
Reliable Supply Chains
Substantial Manufacturing Capabilities
testing machine equipments
10,000+ factories verified
Dongguan Xin Bao Instrument Co.,Ltd
17 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Factory Price Ots Provides Lab Environmental Test Chamber/Physical Testing Machine/Tensile Tester/Battery Test/Paper Packaging Test Equipment
US$
1,000.00
-
20,000.00
1 Piece
(MOQ)
Micro-Computer Control Servo Universal Testing Machine Vertical Tensile Strength Testing Equipment Price
US$
3,000.00
-
6,000.00
1 Piece
(MOQ)
Electromagnetic 3 Axis Xyz Vibration Test Machine Vibration Testing Equipment
US$
15,000.00
-
80,000.00
1 Piece
(MOQ)
Customized Metal Welding Rope Tensile Strength Testing Instrument Machine Equipment
US$
3,000.00
-
8,000.00
1 Piece
(MOQ)
1/4
Dongguan Lituo Testing Instrument Co., Ltd.
18 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Large Package Free Falling Endurance Test Machine Impact Testing Equipment
US$
3,000.00
-
5,000.00
1 Piece
(MOQ)
Foam Mattress Testing Equipment Mattress Testing Machine Lab Equipment
US$
6,000.00
-
18,000.00
1 Piece
(MOQ)
Furniture Fatigue Testing Machine/Sofa Comprehensive Testing Equipment
US$
8,750.00
-
18,000.00
1 Piece
(MOQ)
Tensile Testing Equipment Impact Testing Machine Laboratory Equipment
US$
4,999.00
-
9,999.00
1 Piece
(MOQ)
1/4
Suzhou Qiantong Instrument Equipment Co., Ltd.
12 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Lab Equipment Tensile Testing Machine / Tensile Deformation Testing Equipment
US$
5,797.00
-
7,324.00
1 Piece
(MOQ)
Rubber Static Stiffness Universal Testing Machine/Equipment 300kn
US$
12,318.00
-
16,176.00
1 Piece
(MOQ)
High Molecular Material of Testing Machine Equipment
US$
6,000.00
-
7,800.00
1 Piece
(MOQ)
5kg Computerized Electronic Testing Machine/Equipment
US$
9,558.00
-
14,202.00
1 Piece
(MOQ)
1/4
Dongguan Zhongyao Automation Equipment Co., Ltd.
15 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Automatic Assembly Processing Machine High-Speed Board-Side Connector Producing and Testing Equipment
US$
100,000.00
-
200,000.00
1 Piece
(MOQ)
High Speed, Quiet and Energy-Saving Auto Board-Side Machine Board-End Connector Assembly and Testing Equipment
US$
100,000.00
-
20,000,000.00
1 Piece
(MOQ)
High Assembly Efficiency with Bending Function Machine Board-End Connector Assembly and Testing Equipment
US$
100,000.00
-
90,000,000.00
1 Piece
(MOQ)
Auto Mechanism Design with Code Scanning Wire-End Waterproof Connector Assembly and Testing Equipment Wire Connector Auto Production Machine
US$
100,000.00
-
90,000,000.00
1 Piece
(MOQ)
1/4
Guangdong MENTEK Testing Equipment Co.,Ltd
20 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Advanced Battery Impact Testing Equipment for Heavy Shock Standards Test Machine
US$
3,000.00
-
10,000.00
1 Piece
(MOQ)
Battery Pack Dual-Wing Drop Testing Equipment Lithium Two-Winged Fall Impact Test Machine
US$
5,000.00
-
30,000.00
1 Piece
(MOQ)
Advanced Electronic Desktop Tensile Testing Machine for Precision Electrical Equipment Analyze
US$
1,000.00
-
3,000.00
1 Piece
(MOQ)
Battery Pack Low Pressure Testing Equipment for Advanced Test Solutions Tester Machine
US$
5,000.00
-
30,000.00
1 Piece
(MOQ)
1/4
Jinan HengXu Testing Machine Technology Co., Ltd
16 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Automated Four Ball Friction Testing Machine Extreme Pressure Testing Equipment
US$
11,000.00
-
20,000.00
1 Set
(MOQ)
Mvf-1A ASTM Pin/Ball on Disc Friction and Wear Test Equipment Testing Machine
US$
11,000.00
-
20,000.00
1 Set
(MOQ)
Hrt-A02 Reciprocating Pin/Ball-on-Disc Friction and Wear Testing Machine Test Equipment
US$
11,000.00
-
24,000.00
1 Set
(MOQ)
Hds-2 2000n200kg Reliable Tensile Test Equipment with Single Column
US$
1,500.00
-
5,000.00
1 Set
(MOQ)
1/4
Shandong Sida Gaoke Machinery Equipment Co., Ltd.
Send Inquiry
ISO6892, ISO7500-1, ISO377 WAW-1000Y (1000kN)Laboratory Material Testing Machine/ Instrument/ Equipment
US$
15,000.00
-
50,000.00
1 SET
(MOQ)
WAW-2000Y (2000kN) Computer Control Electric-Hydraulic Servo Universal Testing Machine/Equipment
US$
28,000.00
-
50,000.00
1 SET
(MOQ)
1000kN Test RP0.2 Electro-Hydraulic Servo Universal Testing Machine/Equipment
US$
15,000.00
-
50,000.00
1 SET
(MOQ)
GW-50 HRBF600 Steel Bar Bending and Re-bending Testing/Test/Machine/Instrument/Equipment
US$
15,000.00
-
100,000.00
1 Set
(MOQ)
1/4
Jinan Haideno Machinery Automation Co., Ltd.
Send Inquiry
Safety Valve Testing Machine for Flange Valve Custom Automatic Seal Test Pressure Detection Equipment
US$
11,700.00
-
16,000.00
1 Piece
(MOQ)
Haideno Water Pressure Testing Machine External Measurement Method Equipment for Tests
US$
19,000.00
-
20,000.00
1 Piece
(MOQ)
Hydraulic Hose Pressure Testing Machine Computer-Controlled Hydrostatic Burst Testing Equipment
US$
5,800.00
-
10,000.00
1 Piece
(MOQ)
External Testing Method Water Pressure Testing Machine CNG Winding Cylinder Cylinder Inspection Equipment Sy-W04 Testing Table
US$
19,000.00
-
20,000.00
1 Piece
(MOQ)
1/4
Guangzhou Zhilitong Electromechanical Co., Ltd.
27 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Calibration Device Testing Equipment of Spring Hammer for IEC60068-2-75 Test Machine
US$
5,900.00
-
6,000.00
1 Piece
(MOQ)
Heat Compression Lab Test Equipment for IEC60884-1 Testing Machine
US$
350.00
-
400.00
1 Piece
(MOQ)
Appliance Stability Testing Equipment for IEC 62368 Clause 8.6.2 Testing Machine
US$
600.00
-
2,880.00
1 Piece
(MOQ)
Cordless Kettle Insert Pull Testing Equipment for IEC60335-2-15 Test Machine
US$
5,000.00
-
5,100.00
1 Piece
(MOQ)
1/4
Wuxi Serve Real Technology Co., Ltd.
5.0
Send Inquiry
Concrete Creep Test Rig Creep Testing Machine Test Equipment 500kN 1000kN ASTM C512
US$
6,000.00
-
30,000.00
1 SET
(MOQ)
Portable Inclinable Articulated Strut Slip Tester Piast Articulated Strut Slip Testing Machine ASTM-F1677 Shoes Test Equipment
US$
3,000.00
-
10,000.00
1 SET
(MOQ)
High Temperature Rupture Testing Machine ISO 5013: 1985 Refractory Test Equipment
US$
1,000.00
-
10,000.00
1 Set
(MOQ)
Shock Absorber Spring Tensile & Compression Strength Tester 20kn Spring Tensile Testing Equipment Stm-Ms-20h Material Testing Machine
US$
5,000.00
-
15,000.00
1 SET
(MOQ)
1/4
Suzhou Tophung Machine Equipment Co., Ltd.
19 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Adhesive Tape Initial Adhesion Testing Machine Testing Equipment
US$
300.00
-
500.00
1 Piece
(MOQ)
Programmable Constant Temperature and Humidity Testing Machine/Lab Equipment
US$
4,000.00
-
6,000.00
1 Piece
(MOQ)
Computer System Tensile Testing Machine/Equipment (TH-8201S)
US$
4,000.00
-
7,000.00
1 Piece
(MOQ)
Wire and Cable Bend Testing Equipment/Copper Wire Testing Machine
US$
8,000.00
-
12,600.00
1 Piece
(MOQ)
1/4
Guangdong Haida Equipment Co., Ltd.
5.0
Send Inquiry
Tissue&Toilet Paper UV Analyzer Test Machine/Fluorescent Agent Testing Equipment
US$
180.00
-
300.00
1 Set
(MOQ)
Chair Armrest and Leg/ Seat Front Edge Durability Testing Machine Furniture Testing Equipment
US$
5,000.00
-
15,000.00
1 Piece
(MOQ)
Chair Cylinder Durability Testing Machine Furniture Test Equipment
US$
3,000.00
-
8,000.00
1 Piece
(MOQ)
Computer Control Packaging Luggage Free Drop Impact Testing Machine/Equipment
US$
3,000.00
-
6,000.00
1 Piece
(MOQ)
1/4
TESTech (Suzhou) Instrument Technologies Co., Ltd.
13 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Combustion Test Equipment with Needle Flame Testing Machine
US$
1,000.00
-
9,000.00
1 Piece
(MOQ)
Needle Flame Testing Equipment Machine for Simulating Combustion Properties of Products
US$
1,000.00
-
9,000.00
1 Piece
(MOQ)
Flame Test Lab Equipment for IEC 60695 Needle Flame Testing/Test Machine
US$
1,000.00
-
9,000.00
1 Piece
(MOQ)
Nbs Smoke Density Test Chamber ISO 5659 Fire Testing Equipment
US$
1,000.00
-
9,000.00
1 Piece
(MOQ)
1/4
Dongguan Weibang Instrument Equipment Co., Ltd.
15 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Automatic Module Changing Thrust Testing Machine - Precision Laboratory Test Equipment
US$
7,999.00
-
40,000.00
1 Piece
(MOQ)
High-Performance Thrust Testing Machine - Multifunctional Laboratory Testing Equipment
US$
7,999.00
-
40,000.00
1 Piece
(MOQ)
Comprehensive Thrust Testing Machine - Laboratory Equipment for Chip Bond Testing
US$
7,999.00
-
40,000.00
1 Piece
(MOQ)
High Precision Thrust Testing Machine - Automatic Module Changing Test Equipment
US$
7,999.00
-
40,000.00
1 Piece
(MOQ)
1/4
Shengerxin Technology (Chongqing) Co., Ltd.
3 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Reliable Roughness Profilometer Testing Equipment for CNC Parts Machines
US$
4,889.00
-
5,999.00
1 Piece
(MOQ)
High-Precision Testing Machine: Automatic Measuring Equipment for Accuracy
US$
4,500.00
-
6,889.00
1 Piece
(MOQ)
Efficient Roughness Testing Equipment for Auto Parts and CNC Applications
US$
4,889.00
-
5,999.00
1 Piece
(MOQ)
Precision Roughness Profilometer Testing Equipment for Industrial CNC Parts
US$
4,889.00
-
5,999.00
1 Piece
(MOQ)
1/3
Quanzhou Meibang Instrument Co., Ltd.
16 yrs
·
Manufacturer/Factory
Send Inquiry
ASTM D 1175 Talbot Wear Testing Machine /Tester /Laboratory Equipment Yg522
US$
2,000.00
-
3,000.00
1 Piece
(MOQ)
Snagging Testing Machine /Tester /Laboratory Equipment Yg518-IV
US$
2,000.00
-
4,000.00
1 Piece
(MOQ)
BS5058 Automatic Fabric Drapability Testing Machine /Laboratory Equipment Yg811e
US$
3,500.00
-
5,000.00
1 Piece
(MOQ)
Snagging Testing Machine /Tester /Laboratory Equipment Yg518-II
US$
3,000.00
-
4,000.00
1 Piece
(MOQ)
1/4
Kailong High-Technology Co., Ltd.
Send Inquiry
Standard DPF Purging and Testing Equipment DPF Postprocessing Cleaning Machine Truck Care Equipment
Negotiable
1 Piece
(MOQ)
DPF High Temperature Regeneration Machine DPF Filter Regeneration Performance Testing Equipment
Negotiable
1 Piece
(MOQ)
Diesel Particulate Filter Regeneration Machine DPF Cleaning Equipment
US$
500.00
-
10,000.00
3 Sets
(MOQ)
Newest Lower Price 15kw 35kw Intelligence Fuel Heating DPF High Temperature Regeneration Equipment
Negotiable
1 Piece
(MOQ)
1/4
Qingdao Hengwang Weiye Machinery Co., Ltd
10 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Textile Machinery High Quality Fiber Sampling Equipment for Textile Testing Purposes
US$
100,000.00
1 Piece
(MOQ)
Fiber Opening Machine Textile Machinery Nonwoven Fiber Testing Equipment for Standard Sample Preparation
US$
100,000.00
1 Piece
(MOQ)
Advanced Fiber Sampling Equipment for Material Testing Laboratories
US$
39,368.56
17 Pieces
(MOQ)
Compact Fiber Cutter Equipment for Research and Industrial Testing
US$
100,000.00
1 Piece
(MOQ)
1/4
Trojan (Suzhou) Material Technology Co., Ltd.
21 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Alpha-610 High Quality OEM/ODM Lab-Grade Automatic Metallographic Grinding Polishing Machine Testing Equipment
US$
8,030.00
-
11,470.00
1 Piece
(MOQ)
High Quality OEM/ODM Manual Metallographic Alpha-610 Grinding Polishing Machine Testing Equipment
US$
8,030.00
-
11,470.00
1 Piece
(MOQ)
Alpha-610 Metallographic Lab-Grade Automatic Grinding Polishing Machine Testing Equipment
US$
8,030.00
-
11,470.00
1 Piece
(MOQ)
High Quality Semipol Metrology Lab Testing Double Disc Metallographic Sample Specimen Grinding and Polishing Machine Lab Equipment
US$
23,470.00
-
33,530.00
1 Piece
(MOQ)
1/4
Yangzhou Kejia Electronic Equipment Ltd.
24 yrs
·
Manufacturer/Factory
Send Inquiry
Power Equipment Impulse Voltage Testing Machine China Impulse Voltage Testing Equipment Manufacturer
US$
10,000.00
-
30,000.00
1 Piece
(MOQ)
Power Equipment Impulse Voltage Testing Machine
US$
10,000.00
-
30,000.00
1 Piece
(MOQ)
Integrated Frequency and Voltage Adjustable Partial Discharge Detection Equipment Kj-2025-5kVA/5kv
US$
43,000.00
-
46,000.00
1 Piece
(MOQ)
Pd Partial Discharge Detection Equipment 10kVA 50kv
US$
15,000.00
-
25,000.00
1 Piece
(MOQ)
1/4
Shenzhen Wisdomshow Technology Co., Ltd
16 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Ai Integrated Microfocus S-7000 New Xray Industrial Machinery Large-Scale PCB Board Testing Equipment 220V Voltage
US$
27,999.00
-
29,868.00
1 sets
(MOQ)
Wds-S7200 Digital Xray Inspection Equipment for Electronic Component Testing NDT Inspection Machine
US$
33,800.00
-
35,880.00
1 Set
(MOQ)
Cost Effective Model Wds-S7000 Precise Microfocus X-ray Inspection Equipment for Large-Scale PCB Board Testing
US$
27,999.00
-
29,868.00
1 sets
(MOQ)
X-ray Inspection SMT Aoi PCB Test S-7200 IC Internal Check Equipment
US$
33,800.00
-
35,880.00
1 Set
(MOQ)
1/4
Ai Si Li (China) Test Equipment Co., Limited
20 yrs
·
Manufacturer/Factory
Send Inquiry
150~300 Rpm Vibration Simulation Testing Machine Package Transport Test Equipment
US$
1,500.00
-
8,000.00
1 Set
(MOQ)
Mechanical Shock Test Machine/ Impact Shock Testing Equipment Manufacturer
US$
20,000.00
-
250,000.00
1 Set
(MOQ)
Mechanical Shock Testing Machine, Mechanical Impact Test Equipment with Mil-Std-810g Standard
US$
25,000.00
-
80,000.00
1 Set
(MOQ)
Good Quality Package Box Drop Testing Machine, Free Fall Height Test Equipment
US$
2,000.00
-
3,500.00
1 Set
(MOQ)
1/4
Guangdong Yuanyao Test Equipment Co., Ltd.
Send Inquiry
Ce Certificate Lab Machine Dust Resistance Testing Equipment
US$
3,500.00
-
8,000.00
1 Set
(MOQ)
Ipx1~Ipx8 Waterproof Testing Machine Rain Spray Test Equipment
US$
2,500.00
-
7,500.00
1 Set
(MOQ)
Simulated Environment Testing Laboratory Machine Dust Test Equipment
US$
3,600.00
-
15,000.00
1 Set
(MOQ)
Advanced Salt Corrosion Testing Equipment for Yuanyao Machines
US$
2,000.00
-
5,000.00
1 Piece
(MOQ)
1/4
Huafu Brothers (Shenzhen) Automation Technology Co., Ltd
17 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
High Quality Air Leakage Detector Waterproof Testing Machine Leak Test Equipment Manufacturer
US$
3,000.00
-
6,000.00
1 Piece
(MOQ)
Wafu Air Pressure Leakage Testing Machine Smart Water Leak Detection Test Equipment
US$
1,000.00
-
6,000.00
1 Piece
(MOQ)
Wafu Vacuum Leakage Tester Sealing Testing Machine Air Pressure Leak Test Equipment
US$
3,000.00
-
6,000.00
1 Piece
(MOQ)
Intelligent Air Tightness Leak Detector Tester Flow Testing Equipment Waterproof Test Machines
US$
3,000.00
-
6,000.00
1 Piece
(MOQ)
1/4
Dongguan Hongjin Test Instrument Co., Ltd.
Send Inquiry
Frame Back Triangle Vertical Dynamic Fatigue Testing Machine/Frame Front Fork Bending Life Test Equipment
US$
199.00
-
4,800.00
1 Piece
(MOQ)
Sole Walking Bending Testing Machine/Sole Extension Testing Equipment
US$
199.00
-
1,899.00
1 Piece
(MOQ)
Rocking Chair Bearing Testing Machine/Office Chair Furniture Durability and Hardness Testing Equipment
US$
199.00
-
3,900.00
1 Piece
(MOQ)
Micro Fall Test Machine/Cellphone Drop Testing Equipment
US$
800.00
-
3,200.00
1 Piece
(MOQ)
1/4
Changzhou Zhihai Machinery Co., Ltd.
5.0
Send Inquiry
Thermal-Stable Multi-Module Auto-Switch Automated Optical Inspection (Aoi) Systems Testing Equipment Machine Machinery
US$
53,000.00
1 Piece
(MOQ)
Global Plug-and-Play Multi-Module Auto-Switch Automated Optical Inspection (Aoi) Systems Testing Equipment Machine Machinery
US$
53,000.00
1 Piece
(MOQ)
Smart Multi-Module Auto-Switch Automated Optical Inspection (Aoi) Systems Testing Equipment Machine Machinery
US$
53,000.00
1 Piece
(MOQ)
High-Precision Multi-Module Auto-Switch Automated Optical Inspection (Aoi) Systems Testing Equipment Machine Machinery
US$
53,000.00
1 Piece
(MOQ)
1/4
Dongguan Huanyi Instrument Technology Co., Ltd.
19 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Fabric Tensile Strength Testing Equipment Machine
US$
2,877.00
1 Piece
(MOQ)
Small Cell Phone Micro Drop Test Machine Equipment for Carton Packaging Testing
US$
243.00
1 Piece
(MOQ)
High and Low Temperature Resistant Explosion-Proof Testing Equipment
US$
4,999.00
-
15,999.00
1 Piece
(MOQ)
Advanced Drop Test Equipment for Reliable Product Packaging Validation
US$
2,900.00
-
4,999.00
1 Piece
(MOQ)
1/4
Guangdong Komeg Industrial Co., Ltd.
15 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
1000 Liters Large Test Space Material Testing Machine Thermal Shock Equipment with Controlling System Air-Circulation System and Heating System
US$
4,000.00
-
10,000.00
1 Piece
(MOQ)
Temperature and Humidity Testing Equipment Battery Machine Test Lab Equipment
US$
2,000.00
-
8,000.00
1 Piece
(MOQ)
Komeg Programmable Rapid Temperature Change Chamber (equipment) for Laboratory Testing
US$
4,000.00
-
8,000.00
1 Piece
(MOQ)
150L to 1000L Industrial Laboratory Temperature Humidity Environmental Stability Climate Test Equipment
US$
4,000.00
-
8,000.00
1 Piece
(MOQ)
1/4
Hebei Dual Canopy Mechanic Electrical Engineering Co., Ltd.
1 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
China Full Automatic Testing Machine Closed Flash Point Test Equipment
US$
1,750.00
-
1,950.00
1 Piece
(MOQ)
Bdv Testing Machine Price Portable Transformer Oil Dielectric Test Equipment
US$
1,330.00
1 Piece
(MOQ)
Electrical Current Transformer CT PT Tester Voltage Transformer Testing Equipment
US$
5,199.00
-
5,399.00
1 Piece
(MOQ)
China Cloud Pour Point Tester Testing Equipment
US$
1,650.00
-
1,850.00
1 Piece
(MOQ)
1/4
Qingdao Chengyu Testing Equipment Co., Ltd
6 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Quality and Quantity Assured Wdw-50d Universal Testing Machine Lab Equipment
US$
2,200.00
-
3,000.00
1 SET
(MOQ)
Electronic Dynamic and Static Testing Machine Fatigue Testing Machine Laboratory Equipment
US$
18,500.00
-
25,000.00
1 SET
(MOQ)
Waw-1000d Computer Display Hydraulic Universal Testing Machine OEM Testing Equipment
US$
8,800.00
-
9,855.00
1 Piece
(MOQ)
1j 2j 3j 4j 5j 7.5j 15j 25j 50j Digital Charpy Impact Testing Machine Lab Equipment
US$
4,000.00
-
5,500.00
1 SET
(MOQ)
1/4
1
377
Hot Products
Testing Equipment
Material Testing
Balancing Machine
Function Testing
Material Testing Equipment
Computer Control Machine
Testing Machinery
Testing Meter
Related Manufacturers & Supplier
Temperature Testing Factories
Automatic Testing Factories
Metal Detector Machine Factories
Testing Device Factories
Testing Machine Manufacturers
Temperature Test Machine Manufacturers
Load Machine Manufacturers
Automatic Testing Machine Manufacturers