union nut 1)size:1/2'-4" 2)material:ss304,304L,316,316 union nutFeatures:1)size:1/2"-4"2)material:ss304,304L,316,316L3)standard:DIN,ISO,3A4)Pressure grade:PN2.5-32Mpa5)Price:very competitive,especially the price for stainless steel seriesWe also can manufacutrue similar products according to your requirment. union nut stainless steel