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