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