石油天然气钻采设备 钻井和修井井架、底座的检查、维护、修理与使用
Petroleum drilling and production equipment-Operation, inspection, maintenance, and repair of drilling and well servicing structures
2018-10-29
API RP 4G Datasheets-2004
Datasheets for Use and Procedures for Inspection, Maintenance, and Repair of Drilling and Well Servicing Structures (Excel 5.0 Spreadsheets)
钻井和修井结构的使用数据表和检查、维护和维修程序（Excel 5.0电子表格）