With the rapid development of solar energy and heat and light market, the pressure plate solar energy and the pressure water tank are attracting more and more attention from the market because of their advantages such as high efficiency, long life and easy connection with construction.

Endothermic data flat plate collector, is used by most of the current aluminum blue membrane plate vacuum coating, the best is imported from Germany, high absorption rate, low reflectivity. The film is also useful in absorbing materials collected, but the cost is higher, no aluminum plate using in blue film. There are three main ways to connect the aluminum blue film plate with the copper tube in the heat absorption data: 1. mechanical package, 2. ultrasonic welding and 3. laser welding machine.