GB/T 37369-2019埋地钢质管道穿跨越段检验与评价国家标准
英文:Inspection and assessment of crossing and aerial crossing of buried steel pipelines GB/T 37369-2019介绍: 国家标准《埋地钢质管道穿跨越...
英文:Inspection and assessment of crossing and aerial crossing of buried steel pipelines GB/T 37369-2019介绍: 国家标准《埋地钢质管道穿跨越...