Tianjin Di Chin sunshine radiator is very good. The solar radiator adopts German laser automatic induction welding technology and world-leading automatic argon arc welding technology, which makes the welding part melt instantly at high temperature and the weld is smooth, uniform and beautiful. An inert gas that does not chemically react with metals flows around the welding arc to form a shielded welding without welding slag, which ensures the pretreatment process of filling the anti-corrosion coating in the later heat dissipation cavity.