... ,Carbon Steel Casting Precision Casting,Carbon Steel Casting,Casting 1) Molding process: Loss wax investment casting,Sodium Silicate Technology, ... Colloidal Silica 2) Material: Carbon steel, Alloy steel, Stainless steel, Brass, ... 9) Manufacturer certification: ISO9001 (2000) / TS16949 Precision Casting,Carbon Steel Casting,Casting