Electrial switch, folders, auto parts, small home appliance accessories, standard & non-standard hardware fastener products Product Description MaterialAluminum: Al6061, Al6063,AL7075,AL5052 etc.stainless steel300grade,400gradeSteel:Q235,20#,45# etcBrass:C36000(C26800), C37700(HPb59), C38500(HPb58),C27200(CuZn37),C28000(CuZn40)..