solar collector
Product Detailed
can stand high pressure when it works,and
Specifications:
manifold (interior): red copper
manifold (exterior): aluminum alloy
Glass tube dimensions: 58mm x 1.8m / 47mm x 1.5m
Heat preservation: 72 hrs
Hail resistance: 25mm
max pressure: 12 bar
Coating of vacuum tube: ss-cu-ain/aln
heat pipe : anti-freezing > -35 degree
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