... ,ISO9001,CCC, 3.reliable quality,offer OEM flat solar system(for a project) 2. Specification: 1×2 m², the water can rise ... electric shock, no blasting etc.4. Free of charge in using the solar energy to get the hot water, very economy.5 ... performance, little maintenance, can stay for nearly 20 years.6. Diverse specification, fit for different kind of family.7. There always has hot ...