GB/T 2102-2022钢管的验收、包装、标志和质量证明书国家标准
英文:Acceptance, packaging, marking and quality certification for steel tubular products GB/T 2102-2022介绍: 国家标准《钢管的验收、包装、标...
英文:Acceptance, packaging, marking and quality certification for steel tubular products GB/T 2102-2022介绍: 国家标准《钢管的验收、包装、标...