... up to 0...400 barsocket:heavy-duty 316 ss or coper alloy ,LM or CBMcapsule material:316 ss phosphor brassconnection way:back connection,bottom ... ,BSPT,PT,ZG,and other special specification availabletube/capsule material: 316 ss or copper alloycase: 304 ssbezel: 304 sswindow(lens):polycarbonate,and ...