... .e. Work at anytime and enjoyable.f. Material of Model:1) The pipeline is made of red copper and conducted by ... Tube1800mmOuter Diameter of Tubeφ58mmTube Quantity1518202430Manifoldcasing material,Aluminum Alloy,Thickness,1.8mm,Insulating layer,compressed rock woolHeat Pipe pure red ... 10-4,Service Life,10 years Mounting FrameAluminum Alloy,Thickness,1.8 mm, not have back-leg Rack InsertABSDimension(CBM) ...