Inquiry about Bare Spring-Driven Reel Mechanism

I require a bare spring-driven reel mechanism for portable spool system application, specifically needing only the internal components without hose/cable/housing. Essential specifications include:
- Flat spiral spring motor (constant torque type)
- Torque capacity: 10-15 kg for heavy cable
- Dimensions: 120-180mm outer diameter, 35-60mm height
- Rotary drum interface with center shaft/coupling point
- Optional quick-release detachable drum flange
- Preferred material combination: plastic drum with metal spring motor

Please provide:
1. Product photos showing internal mechanism
2. Detailed dimensions (Ø, height, center shaft size in mm)
3. Torque specifications
4. Available plastic drum configurations
5. MOQ and pricing details

Exclude wall-mounted units or complete hose/cable assemblies. Focus on core mechanism components only.