- 大連Drum packing machine
- 大連Linear electrochemical copper plating
- 大連High speed copper plating
- 大連Steel brush machine
- 大連Belt sander
- 大連High frequency dryer
- 大連Electric control programming and distribution panel
- 大連Wire drawing machine
- 大連Flux cored wire
- 大連Robot equipment debugging
- 大連Waste gas treatment
- 大連Precision layer winding machine
