yongzhong longwan, wenzhou, zhejiang, China,325024
(pl)plate-type flat welding flange, (so) slip-on neck flange, (wn) weld neck flangeã,??, (sw) socket welding flange, (th) threaded flange, (pj/pr) flat welding ring loose flange, (pj/se) butt welding ring loose flange, large-diameter flange, marine flange,