GB/T 21833.2-2020奥氏体-铁素体型双相不锈钢无缝钢管第2部分:流体输送用管标准
英文:Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2: Pipes for fluid service GB/T 21833.2-20...
英文:Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 2: Pipes for fluid service GB/T 21833.2-20...