... 1.high hot water produced,use heat tube for exchange 2.CE,ISO9001,CCC, 3.reliable quality,offer ... OEM flat solar system(for a project) 2. Specification: 1×2 m², ... in the sunny days: 75-140kg/m².3. Definitely safe and clean, no pollution, no poison, no electric ... , little maintenance, can stay for nearly 20 years.6. Diverse specification, fit for different kind of family.7. ...