1pc valve locking devices Material: SS304/316 Size:DN6-DN100(1/4"-4") valve locking devicesMaterial: SS304/316Size:DN6-DN100(1/4"-4")Applicable media: water ,oil, gasApplicable temperture:-40~180°CNominal pressure(PN):1.6,2.5,4.0,6.4Strength testing pressure(PT):2.4,3.8,6.0,9.6Materials of main partsDescription of partsQ11F-(16-64)CQ11F-(16-64)PQ11F-(16-64)RBODYWCBZG1Cr18Ni9Ti CF8 ...