... Ltd is a professional factory which in high precision casting parts , machining processing parts for more than 6 years already, ... forging parts,welding parts and assembly service.2.Various Machining Materials:stainless steel, alloy steel , heat resisting steel ... ,ASTM,AISI,BS,GB standardPrecision steel casting 1. Description: Precision Investment, Lost Wax Process..........2. Material: Stainless steel, ...