Gaomi Changshun Grinding Materials Co., Ltd. was established in 2003 and has two independent brands, HYD Haiyanda and CSYM Changshun Grinding, customized aluminum oxide abrasive series sandcloth sandbelt, customized silicon carbide abrasive series sandcloth sandbelt, zirconium steel jade sandbelt sandpaper backing sand sheet sandpaper roll sponge sand block sandcloth wire strip industrial graphite cloth sponge sandpaper series grinding and polishing products. The company's products are widely used in electronics, stainless steel, metal precision casting, deburring, polishing, handicrafts, aluminum alloys, hardware tools, woodworking, automobiles, paint polishing treatment, and so on