Threaded flange
1.flange Material:Rst37.2,S235 JRG2,C22.8,SS400,SF440A,A105 2.flange Size:1/2"-40"
3.Flange varietiesplate. slip-on, welding neck, threaded, socket weld, lap-joint flange, reducing flange, blind flange,
4.Flange surface treatment: transparent /black / yellow ...
Products: thread color chart,
thread plug gages