Blid Flange 1) TUV and ISO 9001 cert. 2) DIN/ EN1092/ ANSI ... : 201,202,301,302,303,304, 304L,309S,310S, 316,316L,317,317L,321,410,410S,420,Q235, etc4. Standard: ANSI ... ,FM,FF,RJ1. Type: welding neck flange, lap joint flange, thread flange, slip on flange, socket welding flange, blind flange1. Blind FlangeLap Joint FlangeThread FlangeSlip On FlangeSocket ...