产品介绍self drilling screw with rubber washer参数表1,productsdetailesmaterial 1.stainless steel: ss201, ss303, ss304, ss316,ss410, ss420 2,steel:c45(k1045), c46(k1046),c20 其他说明manufactureprocess heading/washer assembly/threading/secondary machine/heattreatment/plating/anti-slipping/baking/qa/package/shipping 交易说明ttin advancefob shen zhen