1) Pipes: 47 x 1,500mm, 58 x 1,800mm, 70 x 2,000mm
2) Heat holding layer: computerized temperature holding, adopt polyurethane as material
3) Water tank material (outside): fluorine-carbon coating plate PVDF≥80%
4) Heat holding layer: computerized temperature holding; Polyurethane, thickness of heat-holding layer: 50mm - 70mm
5) Bracket material: inter-converted tri-pieces frame with diverse applications; imported zinc-coated steel with
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