双弧埋弧焊
twin arc submerged arc welding
单电源双丝埋弧焊
single power source twin-wire submerged arc weldin
螺旋双面埋弧焊缝
Spiral double submerged arc welded seam
双面埋弧焊
double-sided submerged arc
双丝埋弧焊
twin wire submerged arc welding process
double submerged-arc welding
configuration
double-wire automatic submerged arc welding
double-wire SAW
Twin-wire submerged arc welding
Double wire submerged arc welding
twin electrode submeraged welding
twin-wire SAW
双丝双弧焊
double-wire double-arc welding
双丝自动埋弧焊
tandem sequence submerged arc welding
双细丝埋弧焊
twin thin wire submerged arc welding
双细丝双弧焊接
submerged dual arc welding
双向双从蹄式制动器
dual two trailing shoe brake