... . punctual delivery. metal stamped partsmaterial:carbon steel,copper,galvanized steel or tube,aluminium,stainless steel and etc.2,equipment:auto stamping machine ... .color:at clients' request7.mental process:stamping,deep drawing,spot or seam welding,spining,mental assembly areavailable8.certificate:ISO9001:2000,UL ... .9.OEM accepted please feel free to contact us ,anyattention or inquiry is our honor