... ,AISI316L. standard:DIN,SMS,3A,ISO,IDF,AS,BS,BPE High Pressure Clamp(ISO9001:2008 certified)Specification: DN10-DN150, 1/2"-6 ... ,IDF,RJT,AS,BS,BPECertificate: ISO 9001, 3A ,TUV, CEPolishing: Inner surface mechanical polished Ra less than 0.4 - 0.8 ...