1.solar energy collector with heat pipe 2,Anti-freezen& pressurized 3.certificat;CCC,CE,SK, SRCC,ISO 4,Delivery:15 days solar energy collector with heat pipe approved by ISO,CCC,CE ,SK,SRCCSOLAR COLLECTOR FEATURE:1. Pressurized solar collector with SK and SRCC certificate.2. Special high quality Insulated material to reducing the heat loss rate 3. High quality heat pipe for efficient heat ...