Solar Tube Collectors Wanted

1.Must have thick copper grade,

2.must have silver welding,

3.heat pipes must run full length of tube,

4. heat pipe must be taperered at end,

5.inside of tube must be chemically washed.

6.must be 2 layers of glass with vacuum between them

7. Glass tubes must be inspected during heat tempering for stress or weakspots.

8. Must have certification meeting British and European Standards.

9. Able to have OEM design with no way of our customer being able to trace the factory.

10. Able to provide 1 sample