1.seal material: butyronitrile,silicon,fluorine,rubber,PTFE 2.surface glass:organic,tempering, ... (anti-shock),electric point type,remote type,capsule pressure gauge- Material of meter body:08F jet black plastic,electroplate,304SS,aluminium ... :M10×1,M14×1.5,M20×1.5 or according to order.- Material of joint: Casting lead brass,304SS,316SS,copper alloy ...