タイトルまたは説明

***** : White powder , the physical and mechanical properties differ with different ***** has good mechanical properties, anti-corrosion, dielectric and anti-chemicals. ***** can be used in many fiedls, such as construction, transportation, mechanical instrument, electronic, chemical industry, agriculture, foodstuff packing, and so on. ***** complies with the standard of GBT********6 AND GB******4