GB/T 35361-2017潜水器钛合金对接焊缝超声波检测及质量分级国家标准
英文:Ultrasonic testing technique and quality classification for titanium butt weld joints on submersible GB/T 35361-2017介...
英文:Ultrasonic testing technique and quality classification for titanium butt weld joints on submersible GB/T 35361-2017介...