Tongxin purple golden solar water heater vacuum tube

Solar vacuum tube
1.Material:glass
2.Lifetime:15 years
3.OEM provided
4.ISO9001:2000
solar vacuum tube
1.Well-equipped testing equipment and strong technical force
2.With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in energy and other industries.
3.Our products have gained ISO9001:2000 authentication.
4.We provide OEM business and customized service.