1 screw &nut 2 material :plastic /element 3 standard:ISO9001:2000 ... a Chinese manufacturer specialized in OEM ,Die casting,Plastic injection, CNC,Stamping and stamping mould. Our ... material: can be steel, brass, stainless steel, plastic, Aluminium…2) surface treatment:kinds of plating (Zinc, Nikel, ... cutting machines, more than 160 sets in total;2) Standard/ specification: OEM service as per customers' ...