... . 5) Special design availab TypeWN(welding-neck);SO(slip-on);PL(Plate);BL(Blind);TH(Threaded); SW(socket-welding); ... MSS. Look forward to your continued business. TypeSocket Weld,Slip on,Blind,Lapped,Screwed,Weld Neck,Long Weld Neck,Reducing, · ... treatment:Black or white painted to prevent corrosion, smooth, bubble-free. Available Material List : Products/MaterialElbow, Tee ,Reducers ,Flange ,Cap , ...