vecuum tube solar heat pipe

heat pipe
material: High Borosilicate 3.3 glass
thickness:1.6mm
Product feature : put a totally closed glass tube into the or
heat pipe
Material: High Borosilicate 3.3 glass , copper pipe , aluminum fin , sealed rubber cirde .

Outer tube dimension&thickness:Φ = 47±0.7mm &=1.6mm ; Φ= 58±0.7mm &=1.6mm ; Φ=70±0.7mm &=2.0mm ;
Inner tube dimension&thickness: Φ= 37±0.7mm &=1.6mm ; Φ= 47±0.7mm &=1.6mm ; Φ=58±0.7mm &=1.6mm

Length: 800mm , 1200mm , 1500mm , 1600mm , 1800mm , 1900mm , 2100mm .

package:standard export carton with foam reinforced inside.