On the ultrasonic inspection of the thin wall pipe ring welds used in the oil amp; amp; gas long - distance pipeline 石油天然气长输管道薄壁管环焊缝超声波探伤
2.
Metallic tube connections for fluid power and general use - 24 cone connectors with o - ring weld - on nipples 液压及通用金属管连接件.有o形面焊接管接头的24度锥形连接件
3.
Metallic tube connections for fluid power and general use - part 4 : 24 o cone connectors with o - ring weld - on nipples 流体动力和一般用途的金属管连接件.第4部分: o型环焊接在短接管上的24度锥形连接器
4.
Metallic tube connections for fluid power and general use - part 4 : 24 cone connectors with o - ring weld - on nipples iso 8434 - 4 : 1995 ; german version en iso 8434 - 4 : 2000 液压及通用金属管件连接.第4部分:接头焊有o形密封圈
