Patents/Inventors

Dakui Fei

HeilongjiangCN1 patent

2 Patents

US124725772025
Lateral Electro-conduction Device and Method for Multi-wire Submerged Arc Inner/outer Welding of Straight-seam Steel Pipe
Harbin Welding Institute Limited Company
0 cites
US123114632025
Narrow Gap Laser-tig Arc Hybrid Welding Apparatus and Method
HARBIN WELDING INSTITUTE LIMITED COMPANY
0 cites