... ,SMS,ISO,IDF,AS,BS,BPE Standard. Sanitary Stainless Steel Filter(ISO9001:2008,CE,TUV certified) Specification: DN10-DN150, 1/2 ... Ra less than 0.4 - 0.8μm, outer surface glass polished Ra less than 0.8μm. Standard: DIN, SMS ... ,ferrule,end cap,nut,clamp,elbow,tee,cross,reducer,sight glass,manhole cover,cleaning ball,centrifugal pump,pipe holder etc...Advantage ...