... -DN150, 1/2"-6" Materials: AISI304, AISI304L, AISI316, AISI316L Hose coupling, hose coupler(ISO9001: 2008, CE, TUV certified) Specification: DN10-DN150 ... surface glass polished Ra less than 0.8μm. Standard: DIN, SMS, ISO, IDF, RJT, AS, BS, BPE Application: Dairy, Water, Food ...