UNI EN ISO 13680:2020 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 交货技术条件
Petroleum and natural gas industries - Corrosion-resistant alloy seamless tubular products for use as casing, tubing, coupling stock and accessory material - Technical delivery conditions