1)Material:SS304,304L,316,316L 2)Standard:DIN,3A,ISO,IDF,SMS 3)Size:DN25-150&1"- ... 2000pc/week specifications:1)Material:SS304,304L,316,316L 2)Standard:DIN,3A,ISO,IDF,SMS 3)Size:DN25-150&1 ... quick-install check valveFeatures:1)Material:SS304,304L,316,316L2)Standard:DIN,3A,ISO,IDF,SMS3)Certificate;ISO9001:20004)Size:DN25 ...