solar flat collector

1.       Copper core , Header pipe diameter up to 25mm . 2.       The coating is selectivity absorb coat3.       Tempered glass with 5mm thickness.4.       Working pressure: ≤ 0.6Mpa5.       Aluminum Alloy Profile: Electrophretic aluminum alloy profile treatment.                                                 6.       Special Heat Preservation: Less heat loss, more efficiency and more beautiful.
solar flat collector