标 准 号:GB/T 21833-2008 简体中文标题:奥氏体 铁素体型双相不锈钢无缝钢管 繁体中文标题:奥氏体 铁素体型双相不锈钢无缝钢管 English Name:Austenitic-Ferritic (duplex) grade stainless steel seamless tubes and pipes...