... General description1, carbon steel, stainless steel, aluminum alloy flange, according to the standard production of BS, ... DIN standard, and the UNI.2, flange is connector used to process pipe connection ... other equipment may be necessary.3, type: plane flange, sliding, butt, blind, thread, etc.4, ... material:A) carbon steelB) stainless steelC) alloy steel3) standard:B) customer drawings special4) Kinds ...