... of Material; Materrial Carbon STEELSTAINLESS STEEL C-0.20%Max P-0.04% Max AISI 304 Std. Mn-0.90%max S ... Fasteners(PEM Clinching Stud/Nut ,Standoffs).We now service for GM ShangHai,GuangZhou Toyota,HYUNDAI,NISSAN Zhengzhou. SIEMENS,WHIRLPOOL,MCLI,SAMSUNG ...