细晌毁磨渣谨派砂Fine grinding ；亮磨砂bright grinding;不锈钢镀如贺镍electroless nickle-stainless steel
fine grinding sand 细磨砂bright grinding sand 两磨清袭砂stainless steel plated nickel 不源正圆雹塌锈钢镀镍
Fine grindingBright grind arenaceous
