标 准 号:GB/T 20878-2007 简体中文标题:不锈钢和耐热钢 牌号及化学成分繁體中文標題:不銹鋼和耐熱鋼 牌號及化學成份English Name:Stainless and heat-resisting steels-Designation and chemical composition...
标准编号:GB/T 28708-2012 中文名称:管道工程用无缝及焊接钢管尺寸选用规定英文名称:Specification for size selection of seamless and welded steel pipe used in piping engineering标准介绍:本标准规定了管...