... Q345R 3.shape;flat with straight flang flat head for boiler 1.Material:mild steel,low alloy steel,carbon steel, ... ,RT,MT,PT) carbon sulphur analysis instrument non-contact type temperature measuring apparatus WE-60type omnipotent testing machine examine the ... be used in many fileds,such as petroleum,chemical industry,boiler,pressure vessels,railway transportation,metal structure,water supply facilities ...