We are seeking suppliers of wall-mounted split-type air-conditioning units pre-charged with refrigerant for import into Great Britain. Required units must comply with GB F-gas quota/authorization system.  

Please confirm:  
1. Manufacturing capability for split/multi-split AC units  
2. Valid GB F-gas quota holder status or partnership with UK-authorized representative  
3. Technical specifications including refrigerant types (R32/R410A), charge amounts, energy efficiency ratings, and CE certification  
4. Commercial terms and authorization documentation process  

Suppliers must provide legally valid GB authorization letter for customs clearance. Units will be subject to Environment Agency verification.

We require thermosetting SMC enclosures for low-voltage cable and metering connections with annual demand of 20,000-30,000 units.  

Technical specifications must include:  
- Depth options: 250mm or 320mm  
- Width/Height combinations: 260x400mm, 400x600mm, 660x800mm, etc.  
- Electrical parameters: AC 230/400V operational voltage, IP44 protection, IK10 impact rating  
- SMC material with 25-32.5% glass fiber content and 3.5mm minimum wall thickness  
- Modular construction with rigid structure and ribbed external surface  
- Natural ventilation system and water drainage features  
- Three-point locking system with corrosion-resistant metal rods  

Please provide unit pricing, commercial terms, delivery lead times, and warranty details. Offer must include validity period and MOQ information. Enclosures should comply with specified dimensions, material composition, and functional requirements for energy distribution applications.

I'm interested in multi-channel 3-phase meter. Provide specifications for a meter that meets the following requirements: 1. Real-time unit monitoring; 2. Real-time voltage monitoring on each phase; 3. Real-time load monitoring on each phase; 4. Auto on/off electricity supply control; 5. Monitoring of AC