Petroleum and natural gas industries - Downhole equipment - Subsurface safety valve equipment.
石油和天然气工业。下降孔设备。地下安全阀设备。
Petroleum and natural gas industries - Rotary-type positive displacement compressors - Part 1: process compressors (oil-free).
石油和天然气工业。旋转型容积式压缩机。第1部分:加工压缩机(无油)
Petroleum and natural gas industries - Corrosion-resistant alloy seamless tubes for use as casing, tubing and coupling stock - Technical delivery conditions.
石油和天然气工业。作外壳、管道和连接材料用的耐腐蚀合金无缝管。交货技术条件。