1)Name: socket weld flange for oil 2)150-2500lb 3)Size:3/8-160" 4)Material: ... 5)SO,WN,SW,PL.BL,TH socket weld flange for oil Size1/2"-160"TypeWeld Neck flange(WN),Slip-On flange ... groove face);MFM(male and female face)Facing Methodrust preventing oil, spray paint (black, yellow), hot galvanization, cold galvanization or colored ... ),seamless steel pipe (SMLS) ,and LSAW pipe! socket weld flange for oil