... flat plate solar panel:modelfp3.0-dfp3.0-eRiser Tubes Spec. & Qty(mm) copper,Φ10 * δ0.45 * 1885, 8pcsΦ10 * δ0.45 ... * 1885, 8pcsCopper Header Tubes Spec. & Qty(mm)copper,Φ22 * δ0.6 * 1060,2pcs Φ22 * δ0.6 ... * 1060,2pcs Copper Board Core125 * δ0.15 ,8pcs, all cooper fin, ultrasonic welding ...