We are looking to purchase 1-2 units of collapsible PVC fish tanks for initial project testing. Required specifications:
- 6 meters diameter with 1.5m height
- PVC tarpaulin material with 0.8mm liner thickness
- Must include 1-year warranty

Please provide your best offer. No additional accessories needed at this stage.

Require gold centrifugal concentrator with below specifications:  
1. Processing capacity: 0.5-0.6 t/h for feed ≤3mm (optimal 0.074-2mm)  
2. Electrical versions: 220V single-phase and/or 380V three-phase  
3. Customized diesel engine version with cost difference  
4. Minimum 95% fine gold recovery rate  
5. Water consumption: 2-3 m3/h  
6. Manual operation with 1-4 hour cleaning cycle  
7. Must include: Bowl with replaceable rubber liners, carbon steel casing, basic spare parts kit, operation manual  
8. FOB China port delivery  
9. Initial order quantity: 1 unit (potential repeat orders)  
10. Final destination: Callao Port, Peru