... collectors with different coating 1, Black Chrome Coating series: absorption:~95%, thermal emission:~10% 2, Blue ... %, thermal emission:~5% 3, Anode oxidaiton coating series: showing as below STANDARD SPECIFICATION: Absorber coating: ... chrome coating, Collector with Bluetec coating and CP series .We are the only one of Chinese high ... CE, Solar Keymark split flat plate solar water heater collector