EN ISO 13680-2020
Petroleum and natural gas industries - Corrosion-resistant alloy seamless tubular products for use as casing, tubing, coupling stock and accessory material - Technical delivery conditions (ISO 13680:2020)
石油和天然气工业.用作套管、油管、连接杆和附件材料的耐腐蚀合金无缝管产品.交货技术条件（ISO 13680-2020）
2020-06-03