... .long service life 5.operate easily 3way ball valve,instrument ball valve 1.instrument ball valve2.small resistence to the fluid 3 ... connective pipe systemsMaterial : 20#,1Cr18Ni9Ti,304,316,316LType : 2 way, 3 way, 4 way ,5 wayWorking pressure:100 PSI to 6000 PSISizes : 1 ...