Patents/Inventors

Dong Du

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
US115414832023
Control Device and Method for Formation of Weld Seam
Tsinghua University
0 cites