... union DN15-150 1"- 6" Material:AISI304,AISI304L,AISI316,AISI316L ,SS304,SS316 Standards:DIN,SMS,ISO,IDF,3A,etc casting stainless steel ... union DIN 11851 DIN union features:1) Material: stainless steel SS304, 304L, SS316, 316L2) Size: DN10,DN15,DN20,DN25,DN32,DN40,DN50 ...