... steel 3, your drawing is welcomed 1, Marine Hardware, casting marine parts2, steel, stainless steel3, your drawing ... Resin SandCold Harden Resin SandINVESTMENT CASTINGSodium Silicone(Water Glass)Stainless Steel, Carbon Steel, Special Alloy Steel, ... parts, auto &motorcycle parts, train & railway parts, marine hardware, construction hardware, electrical, furniture, etc.2. ...