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china Dongguan Quality Control Technology Co., Ltd. certification
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Customer Reviews
The touch screen micro vickers hardness tester has been installed a few weeks ago, everything is OK. Thanks for your advice and excellent service.

—— Mr. David Chambers

Thanks for the fast delivery and our customer is very satisfied for the rockwell hardness tester, and hope more orders soon.

—— Neil Renato

After we visited the customer, they finally decided to purchase Brinell hardness tester iBrin-413Z, now we have installed the unit at customer’s site,

—— Fermin Lee

Thank you for the indenters (diamond  cone 120 degrees). We recently got it and already tested it. Indenters  are good as we expected. 

—— Dalius Skinulis

The Measurements are good for Brinell Tester HBST-3000.

—— Sun Chull Kim

Hey, the hardness tester iVick-484ST was installed last week and works well, thanks for the professional support.

—— Sabinian Smith

I am glad to inform you that the installation of the SHB-3000C Brinell hardness tester has been finished successfully. I would like to thank you!

—— Robbin

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Company News
china latest news about Stereo Microscope iqualitrol iStereo-SZ66

Stereo Microscope iqualitrol iStereo-SZ66

[2024-09-04 09:28:55]
Parallel Optical Path Stereo Microscope iqualitrol iStereo-SZ66 with Magnification 6.8x-45x Technical Specifications: Item Specification Outfits Order No. Objective Body Galileo optical system, Left and right parallel optical path, Non-coaxial image, Zoom range: 0.68-4.5X ● SZ101101 Tube Head ... Read More
china latest news about Test Method for Coefficients of Friction ASTM D1894

Test Method for Coefficients of Friction ASTM D1894

[2025-12-03 08:53:56]
Test Method for Coefficients of Friction ASTM D1894 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting ASTM D1894 ASTM D1894 test method covers determination of the coefficients of starting and sliding friction of plastic film and sheeting when sliding ... Read More
china latest news about Casting Defects of Metal Materials, part 3

Casting Defects of Metal Materials, part 3

[2024-08-22 08:00:37]
Casting Defects of Metal Materials, part 3 The main defects of casting products are segregation, pores, shrinkage and shrinkage, inclusions, cracks, cold shut and other defects. Shrinkage During the solidification process, the metal shrinks in volume, and the melt cannot be replenished in time, and ... Read More
china latest news about Φ400mm Horizontal Profile Projector JT26

Φ400mm Horizontal Profile Projector JT26

[2025-12-02 17:31:15]
Φ400mm Horizontal Profile Projector JT26 Technical Specifications: Models JT26 Projection Screen Φ400mm Rotation Range 0°~360° Resolution of the rotary angle 1′ Accuracy of the rotary angle 4′ Objective Magnification 10X, 20X, 50X, 100X Objective Visual Field φ35mm, φ17.5mm, φ7mm, φ3.5mm Objective ... Read More
china latest news about Casting Defects of Metal Materials, part 2

Casting Defects of Metal Materials, part 2

[2024-08-21 08:17:05]
Casting Defects of Metal Materials, part 2 The main defects of casting products are segregation, pores, shrinkage and shrinkage, inclusions, cracks, cold shut and other defects. Pores During the solidification process of metal, the solubility of gas decreases sharply. It is difficult for gas to ... Read More
china latest news about Casting Defects of Metal Materials, part 1

Casting Defects of Metal Materials, part 1

[2024-08-20 07:42:11]
Casting Defects of Metal Materials, part 1 The main defects of casting products are segregation, pores, shrinkage and shrinkage, inclusions, cracks, cold shut and other defects. 1. Segregation Segregation - the phenomenon of uneven chemical composition in the casting. Segregation makes the ... Read More
china latest news about Common Defects in Carburizing and Quenching

Common Defects in Carburizing and Quenching

[2024-08-19 10:49:43]
Common Defects in Carburizing and Quenching The heat treatment process is inseparable from three core issues: heating, insulation, and cooling. In detail, it includes heating temperature, heating rate, insulation time, cooling rate, and of course atmosphere problems. So once a problem occurs, we ... Read More
china latest news about Lithium Battery Safety Performance Testing Method

Lithium Battery Safety Performance Testing Method

[2024-08-18 14:04:52]
Lithium Battery Safety Performance Testing Method I, Surface Defect Detection The surface defects of lithium batteries are mainly caused by damage to the raw materials themselves or accidental contact on the production line. They are mainly manifested as scratches, wrinkles, bulges, dents, pits, ... Read More
china latest news about SYS-B Portable Sand Mould Surface Hardness Tester

SYS-B Portable Sand Mould Surface Hardness Tester

[2025-11-26 13:21:05]
SYS-B Portable Sand Mould Surface Hardness Tester with Plastic & Metal Construction Product Features: The iqualitrol surface hardness of sand mould is scored as: A, B, C, three models, of which: A Type: apply to manual or mechanical low and medium pressure molding of fine sand (core) surface ... Read More
china latest news about Analysis of Safety Hazards of Lithium Batteries

Analysis of Safety Hazards of Lithium Batteries

[2024-08-17 07:34:39]
Analysis of Safety Hazards of Lithium Batteries Energy-saving and environmentally friendly new energy vehicles are a direction of development in the automotive industry. Batteries, as energy storage components and power sources for new energy vehicles, play a core role in new energy vehicles. ... Read More
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