In HUAZHENG, product tests are carried out throughout the whole production process. Therefore, the quality of our steel grinding media is traceable. We have established complete quality control system, built advanced grinding steel balls R&D center, and equipped a large amount of test equipment such as optical spectrum analyzers (OSA), Olympus high magnification metallographic microscope, Rockwell apparatus with digital display, full automatic metal pendulum bob impact testing machine, falling ball testing machine, etc.
These state-of-the-art test equipment offer the most powerful guarantee to our product quality. Some test reports can be downloaded here. SGS Test Report; Metallographic Structure Test Report
Whole process tests are shown as follows: