We have many types of products, such as solar water, solar water heater, solar pipe, solar heating, solar collector, solar heat pipe, solar vacuum tube, solar energy, heat pipe, solar heater, solar panel, heat pipe, vacuum tube, U pipe, evacuated pipe, solar Heat Collector, separated solar water heater, split solar water heater, compact solar water heater, direct-plug solar water heater, flat plate solar water heater, tank with copper coil. All-glass vacuum heat collecting tube Nanometer molecular engineering is applied to greatly improve the absorption function, the heat collecting ability increase 18%, the water temperature is higher; the same sunshine makes different hot water efficiency. The unique carbonic coating is more reliable than the traditional AL-N/AL coating, and its ageing persistence is better, the coating property is longer. Advanced technology: Multi-layer magnetron sputtering gradation aluminum-nitrogen/ aluminum sun selective absorption coating improve the heat collecting efficiency of high vacuum tube.