... description 1. Raw material: Iron, Steel, Galvanized steel, Cold Rolled Steel (CRS), Mild steel, Stainless steel, Aluminum, Phosphor Copper, Brass, etc ... precision Hexagonal nuts,Square nuts,Self-locking nuts,Castle nuts,Cage nuts,Threaded nuts,stud bolt and nut,stainless steel nut and ... ,thermostat,switch.3.The materials of flanges are stainless steel, steel, copper, brass, aluminum, etc..4.With ...