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Product Specifications Model Collector MZ-BT8QT -Z (Imported BT coating) Product Size: 2, **0 mm×1, **0 mm×*0 mm Collector plate area: 1.*6m2 Weight: *1Kg Manufacture Standard: GB/T***4, EN****5, EN****6 Certification Body: CE, CTS(China) Collector Panels Material: 0.*5mm Copper Fin, Copper TP2 Φ*0, thickness: 0.5mm*8pcs Technics: Ultrasonic Welding Test Pressure: 0.8Mpa Endothermic Body Coating: Blue Titanium eta plus(Germany) Absorptivity: *5% ± 2% Emissivity: 4% ± 2% Special Solar Low Carbon wove Steel Glass Thickness: 3.2mm Conductivity: ≥*7% Collector Insulation materials: Fiberglas Cotton Thickness, Density: *5mm, *5kg/m3 Criterion: ***3T5 1.3mm Shell materials: Aluminum Alloy Backplane materials: 0.7mm Al-Zn plate Spool Input/output: 3/4Copper Thread Coupling Ring Materials: Silica Test Data Heat Loss Coefficient: a1=3.*2 W/M2·K a2=0.**8 W/M2·K Transient Efficiency: *8% ± 2% Maximal Temperature: **0degree Celsius ***0W/M2 Packing: Normal export carton Working Life: *5 Years