... 1)material:stainless steel,some special 2)size:1/2"-48" 3)wall thickness: ... the stainless steel pipe fittings and forged flanges.Item45/90/180,long/short radius elbow, tee, cross, concentric reducer, eccentric reducer, lap joint stub end, pipe ... others. CertificatesISO-9001:2000,API,CCS,CE,TUV pipe fittings stainless steel sanitary pipe elbow