... keymark certificate 2.red copper heat pipe type 3.for school,swimming pool,hotel solar heat pipe collectors Introduction:CE Solar Collector ... for all kinds of climates and regionsParameter: Manifold, Heat Pipe Vacuum tubes and Frame are the three main ... cover.3 , high thermostability, high anticorrosionlHeat Pipe Vacuum tube:Vacuum Tube, Heat Pipe, Aluminum fin and sealing ringVacuum Tube:StructureAll ...