vacuum tubes

Detailed Product Description

The lengthes are 1.2m,1.5m,1.6m,1.7m,1.8m,2.0m, and 2.1m, AI--N/AI alternative absorption coating, the whole glass double tubes coaxial structure vacuum solar collecting superconductive hot tubes.
Features:
1) Structure: all glass coaxial dual tube
2) Material: high borosilicate glass 3.3
3) Interferential coating: copper, aluminum nitride
4) Capabilities:
  a) Fast thermal collecting efficiency
  b) High heat resistance
  c) High cold resistance
5) Life time: 15 years.

Place of Origin:	zhejiang haiyan in China
Model No:	47,58,70
Brand Name:	strong power
Minimum Order:	5000
Supply Ability:	900000/month
Package:	export carton
Delivery Time:	20