... 3.Surface:Mirror,Satin/HL 304 stainless steel pipe NameStainless Steel pipeStandardASTM A554, A249, A269 and ... rot test, heat treatment, NDT Chemical Composition of Material Material Composition201202304316430C≤0.15≤0.15≤0 ... ,and is a group of steel enterprise, our main products are steel pipe, steel plate and so ... 15000 tons pre-painted Coil, all kinds of steel pipe 30000 tons. 3.We also build Airport ...