EC21 Product Catalogs - a 333 gr 6 sch 40 http://www.ec21.com/ec-market/a 333 gr 6 sch 40.html Pipeshttp://megapsc.en.ec21.com/Pipes--2565243_2565247.htmlA333 Gr6 Stainless Steel 1/2"~10"(Seamless) A312 TP 304/304L316/316L, 321, 347 & 904L 8"~24"(EFW) A 358 TP 304/304L, 320080415