Flat Panel Solar Collector, flat-plate solar collectors, solar heat collector, with Maximum Working Pressure of 1.0MPa, Flat Panel Solar Collector, flat-plate solar collectors, solar heat ... 87%Absorber: black chrome with nickel on copper plateConstruction type: fin and tube (ultrasonic welding ... working pressure: 1.0mPaTesting pressure: 1.5mPaBack plate: 0.40mm galvanized steelDimensions: (L) 2,000 ...