... 304,304L,316,316L,321,310S,2205,2507.Type:WeldedSteel Grade:300 SeriesApplication:such as oil& ... gas,petrochemical,pulp&paper,electronicWelding Line Type:ERWThickness:0.5mm---50.0mmOuter Diameter:9.5mm---2032mmStainless steel ... pipe:Specification: 426 * 50 *600Stainless steel large diameter pipe:solution annealing ... boiler:solution annealing steel square tube(high quality)