DIN EN ISO 13680 E:2019-04 石油和天然气工业 用作套管、油管、接箍毛坯和附件材料的耐腐蚀合金无缝管产品 技术交付条件(草案)
Technical Delivery Conditions for Corrosion-Resistant Alloy Seamless Pipe Products Used as Casing, Tubing, Coupling Blanks and Accessory Materials in the Oil and Gas Industry (Draft)