GB/T 34903.1-2017石油、石化与天然气工业与油气开采相关介质接触的非金属材料第1部分:热塑性塑料国家标准
英文:Petroleum,petrochemical and natural gas industries—Non-metallic materials in contact with media related to oil and ga...
英文:Petroleum,petrochemical and natural gas industries—Non-metallic materials in contact with media related to oil and ga...