... ; F304; F304L; F316; F316L; F321; LF2 etc.Forged Check valve: SpecificationsCast Steel Ball Valve 1.Design:BS5351,ANSI B16.34,API6D 2.Pressure ... other polished finishApplicationIndustry,Construction,Machines parts,Decoration etc.TestSquash test, Extended test, Water pressure test, Crystal rot test, Heat treatment, NDTChemical ...