窄间隙埋弧焊成套设备
complete set of narrow gap submerged arc welding equipment
超窄间隙MAG焊
ultra-narrow-gap gas metal are welding
ultra-narrow-gap gas metal arc welding
一种多功能窄间隙焊机
A Multi-function Narrow Gap Welding Machine
双弧埋弧焊
twin arc submerged arc welding
厚壁管窄间隙全位置焊
All-position Narrow Gap and Thick-walled Pipe Welding
厚壁管窄间隙全位置焊接
all position narrow gap and thick wall pipe welding
all position narrow gap and thick walled pipe welding
狭窄间隙反应性离子蚀刻系统
narrow gap reactive ion etching system