... .50,copperTP2φ10*0.50,copperTP2Absorb heater film layer1.selective absorb paint, absorptance is 95%, emitance is 30 ... coating, absorptance is 95%, the emitance is 9%1.selective absorb paint, absorptance is 95%, emitance is 30%; ... , absorptance is 95%, the emitance is 9%1.selective absorb paint, absorptance is 95%, emitance is 30%;2 ... 31KG32KG35KGPressured ability 1.2Mpa1.2Mpa1.2Mpa SJW-solar collector(P)