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ball check valve, brass check valve both design and manufacture are strictly according to API , DIN , GB . The Material : Casting WCB , LCB,wc1, LCC , wc6 , CF8M, CF3 , CF3M , Forged A105 , F6a, F304 , F316 , F316L , F304L ,F182F1 etc .Size : 1/2"-40" (15-1000mm), Class: 150-2500LB( PN1.6-42.0MPa). All of the valves have gotten CE, API6D ,TS ,ISO9001 certificate.
