Pigging ball valve for industrial experiment of subsea pipeline cleaning (16” gas pipeline BK14-BK2 and 8” gaslift pipeline RP3-RC4), Block 09-1 under Vietsovpetro’s Package VT-0786/23-KT-DA (email contact: trangtt.hq@vietsov.com.vn , Ext: 2037) | ChamThau.com