Sanitary Stainless Steel Union 1) Size:1/2"-6"&DN10-DN200 2) Standard: ... Sanitary Stainless Steel Union (3A,DIN,SMS,ISO,RJT,DS,BS)1) Standard: 3A,DIN,SMS,ISO,RJT,DS,BS2) Type: short-stype ferrule ... :dairy,food beer,beverage,cosmetic,pharmacy,wine,chemical,biology,etc Stainless Steel Sanitary Union(Long-type & Short-type)