... test, crystal rot test, heat treatment, NDTSpecification:1). Model No.: 301301 stainless steel pipe with perfect surface settlement, strict tolerance ... , high quality, most reasonable price.2). Material: 201, 202, 301, 304, 304L, 316, 316L ,321,317L,310S,904L and,etc ... 2mm-15mm7). Samples are available, pls contact with me with no hesitation8). Chemical Composition: For more details, please contact us ...