... ,silicon,fluorine,rubber,PTFE 2.surface glass:organic,tempering,PVC,double explosion-proof glass - Structure:normal type,stainless steel type ... (anti-shock),electric point type,remote type,capsule pressure gauge- Material ... no more than 85%- Movement:copper alloy,304SS, toughened glass and etc.- Nominal diameter:φ60,φ100,φ150,φ200,φ250- ...