GB/T 37587-2019埋地钢质弯管聚乙烯防腐带耐蚀作业技术规范国家标准
英文:Technical specification for corrosion resistance of buried steel bend pipe polyethylene anti-corrosion tapes GB/T 375...
英文:Technical specification for corrosion resistance of buried steel bend pipe polyethylene anti-corrosion tapes GB/T 375...