... )Material: Steel, Stainless Steel, Cast Iron, Aluminum, Brass, Copper, Nylon, ABS.(2)Process: CNC Machining, milling, boring, lathing ... hobbling, grinding(3)Surface finish: Powder coating, Painting, Black oxide, zinc plating, chrome plating, nickel plating, Atomization etc. ... send mould design to customer approval first, before move forward to production; we send samples to customer to confirm first. 5 ...