... ,coil,press,polish,cut welded steel tubeMain Grades: 201,202,210,301,304,304L,310S,321,316L,316Ti,310S,309S,INCO800 ... : 800 metric tonsApplication:Electric Heating,cooler,Fluid Conveyance,Mechanical Structure,Heat ExchangerStandard:ASTM A269/249/312 welded steel tube picture: welded ...