Offer solar water heater

Description

1. The biggest advantage: Using advanced megnetron sputtering skill on rete to make sure offer higher absorbility and lower emission. 2. The layer of metal is made of copper, which will offer lower emmission and higher heating aging. 3. High Thermostability: Stainless steel ion in replace of aluminium in absorbent bed to resist higher temperature. 4. The emmission is very stable even if interferometer coating increase temperature. 5. Increase of vacuum on interlayer, up to grade *0. 6. Large and high couverage of selective absorbing coating makes the absorbing and insulation effect of heat excellent. 7.Anti-cold: Advanced vacuum technology, *0 minutes strict exhaust through high temperature of **0 ℃, and truncate convection of heat radiation can make sure its normal working even below minus *0 ℃. 8. Longer working time: Compare to the ordinary water heater vacuum tube, our soalr vacuum tube won&#**9;t degrade pefermance even in long-time air drying.