GB/T 37578-2019尿素级超低碳奥氏体不锈钢无缝钢管国家标准
英文:Urea grade ultra-low carbon austenitic seamless stainless steel tubes and pipes GB/T 37578-2019介绍: 国家标准《尿素级超低碳奥氏体不锈钢无...
英文:Urea grade ultra-low carbon austenitic seamless stainless steel tubes and pipes GB/T 37578-2019介绍: 国家标准《尿素级超低碳奥氏体不锈钢无...