| 1. | Digital controlling technique of co2 gas shielded welder nbc 2气体保护焊机的数控技术 |
| 2. | Carbon steel electrodes and rods for gas shielded arc welding 气体保护电弧焊用碳钢焊条和焊棒 |
| 3. | Low - alloy steel electrodes and rods for gas shielded arc welding 气体保护电弧焊用低合金钢焊条和焊棒 |
| 4. | Gas shielded magnetic flux arc welding 磁性气体保护焊 |
| 5. | Steel wires for gas shielded welding 气体保护焊用钢丝 |
| 6. | Welding wires for gas shielding arc welding of carbon and low alloy steels 气体保护电弧焊用碳钢低合金钢焊丝 |
| 7. | Non gas shielded arc welding 无气体保护电弧焊 |
| 8. | Specification for carbon steel electrodes and rods for gas shielded arc welding 气体保护电弧焊用碳钢焊条和焊棒的规范 |
| 9. | Co2 gas shield welding 二氧化碳气体保护焊 |
| 10. | Copper and copper alloy rods and solid wires for inert gas shielded arc welding 惰性气体保护电弧焊用铜及铜合金焊条及焊丝 |