... ss304,ss316 carbon steel precision aluminum die casting machining parts Specifications: 1 OEM central ... and good price 5 Quality Approvals 6 metal parts ,high precision machine part 7Material: ... carbonitriding, carburizing, and induction hardening Surface treatment: plating, coating, phosphate, anodizing, and CVD/PVD ... R&D engineers stuff, to deal with any reducing products, welcome customized order ...