| Material | copper, aluminum, galvanized plate. | 
| Copper pipe | diameterΦ5, Φ6, Φ7, Φ7.94, Φ9.52, inner grooved or smooth tube. | 
| Aluminum foil | hydrophilic or bare | 
| Fin type | louver fin, flat fin, corrugated fin | 
| Pitch of fins | Ø5 1.5~5.0mm Ø6 1.4~6.0 mm Ø7 1.4~6.5 mm Ø7.94 1.4~5.0 mm Ø9.52 1.4~10.0 mm | 
| Pitch of holes | 19.05x16.5mm, 21x18.20mm, 21x12.7mm, 21x18.2mm,25x21.65mm, 25.4x15.88mm,35.0x35.0mm, equilateral triangle arrangement. | 
 
 
 
 
 
 
 
 
FAQ
Q1: Are you a manufacturer or trading company?
            
 A1: A company integrated with industry and trade.
Q2: What about the shipping methods?   
           
A2: For urgent order and light weight, you can choose the following express: UPS, FedEx, TNT, DHL, EMS. For heavy weight, you can choose to deliver the goods by air or by sea to save cost.
Q3: What about the Payment methods?   
         
 A3: We accept T/T, L/C for big amount.
Q4: How much does it cost to ship to my country?    
          
A4: It depends on seasons. Fee is different in different in different seasons. You can consult us at all times.
Q5: What's your delivery time?  
            
A5: Usually we produce within 25-30 days after the payment confirmed.
Q6: Can I print our logo/barcode/unique QR code/series number on your products?
              
A6: Yes, of course.
Q7: Can I order some sample for our testing?  
            
A7: Normally, sample is free. But as for special samples, it needs some expense.
Q8: Can you customize my products in special shape?  
            
A8: Yes, we can offer OEM and ODM.
Q9: How can you make sure we will receive the products with high quality?      
      
A9: Our QC team will inspect each batch of products before delivery and all the raw material we use eco-friendly material and meet EU standard and US uniform, we have certificates of CE, ROS