... ,industrial ball valve material:ss304,316,316L size:1/4''--2'' ISO9001:2000 pneumatic ball valve,industrial ball valveadvantages:1)simple structure2)long ... #, 1Cr18Ni9Ti,304,316,316Ltype:2 way, 3 way, 4 way, 5 wayworking pressure:100psi to 6000 psisize:1/4'' --2'' screwed BSP/NPTcone: ZG ...