solar vacuum tube
1) high quality and reasonable price
2) environmental friendly
3) nice design
4) ISO9001:2000
Price Terms:FOB,CIF,EXW
Payment Terms: T/T,Western Union,MoneyGram,L/C
Minimum Order: Negotiatable
Delivery Port: Customized
Contact SupplierPackaging Detail: Standard Export Packing: 8 pcs/carton,10 pcs/carton,12 pcs/carton,15 pcs/carton,20 pcs/carton.Customer can choose according to actual needs.
Delivery Detail: within 7-10 days for 1X40'HQ
The technical process of solar vacuum tube :
1. Incision
Raw material
To make the outer tube and inner tube seal at one side,to make the ragged edge neat and ordered
2.Clean the inner tube :the worker must wear the gloves to clean the inner tube with water machine to make the film plating more efficient.
3.Put the holder : putting the spring holder into the outer tube to fix the inner tube .
4.Film plating : at least 40 to 60 minutes
Adding the absorptance material onto the inner tube .
5.Sealing and test : seal the inner tube and outer tube ,then test if the seal perfectly .
Test
6. Vacuum : To make the tube vacuum
7. Test : testing if the solar vacuum tube is available or work efficiently .
8.Clean and laseer logo
9. Packing
10. Finished product