China National Standards

China Guideline defect repair GB Standards List

  •  China "Guideline defect repair" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 36701-2018 Guideline for defect repair of buried steel pipelines
    埋地钢质管道管体缺陷修复指南    		 China National Standards
    Guideline defect repair
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