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Patents Applicationslast 30 patents

Information Patent Application
OVERLAPPING METHOD OF A WELDING GROOVE, A TWIN WIRE WELDING METHOD...
- Publication number 20110266267
- Publication date Nov 3, 2011
- TANGSHAN RAILWAY VEHICLE CO., LTD.
- ZHIPING LIU
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR