... &ODM 5ISO9001-14001 Product name Professional supplier of high-power led substrate for China supplierDie casting max size Aluminium die ... parts : up to 16 lbsZinc die casting parts :up to 1.5lbsMaterialsAluminum Alloys: 380, 13, 360, 390, 413Zinc alloys: ... Die casting ( Aluminium alloy or Zinc alloy )4.Precision machining 5.Surface treatment : burring ,polishing,electroplating .plated chrome ,silver , ...