... .Quality Assurance 5.Test:UT,MT Casting iron sluice gate1.cast Iron (ASTM-A48; Class 25~45-gray iron casting; ASTM-ductile iron castings)2. cast Steel (carbon ... galss)Stainless Steel, Carbon Steel, Special Alloy Steel Bronze,Brass, AluminumSilica SolFORGINGHammer ForgingStainless Steel, Carbon Steel, Alloy Streel, Brass, AluminumDie ForgingRoll ForgingSTAMPING ...