DANSK DS/EN ISO 17781:2017 石油、石化和天然气工业 铁素体/奥氏体(双相)不锈钢微观结构质量控制的测试方法(ISO 17781:2017)
Petroleum, petrochemical and natural gas industries – Test methods for quality control of microstructure of ferritic/austenitic (duplex) stainless steels (ISO 17781:2017)