Home / Standards / GB/T 23512-2009 GB/T 23512-2009 Petroleum and natural gas industries — Evaluation and testing of thread compounds for casing, tubing and line pipe 石油天然气工业 套管、油管和管线管用螺纹脂的评价与试验 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A