T joint 1 surface portland cement lining zinc plus bitumen coating 2 size:dn80-2000,k12 3 standard:ISO9001: ... socket tee, flanged bend,socket bend,blank flange, flange collar and flange bell mouth4)Standard: according to ISO9001;2000, ISO2531, EN545 ... cement mortar lining,FBE coating ,cpoxy Outside with zinc and then plus bitumen,FBE coating,cpoxy high qualityblue ductile iron t joint ...