中华人民共和国国家标准ICS 75.180.10CCS E 92GB/T 44560—2024石油天然气工业用冶金复合油管Metallurgical bonding tubing for petroleum and natural gas industries2024⁃09⁃29 发布2025⁃01⁃01 实施国家市场监督管理总局国家标准化管理委员会发 布GB/T 44560—2024目　　次前言············································...