除锈用黑碳化硅 Black silicon carbide is a very effective rust removal tool. 碳化硅是一种坚硬的, sharp abrasive that has been used in sandblasting and other 阅读更多 >
什么是黑碳化硅? Black silicon carbide is a kind of silicon carbide, which is a hard hexagonal crystal generated by smelting quartz sand and petroleum coke at high 阅读更多 >
