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