How big is the fan of Jialiyuan Technology 3 15 welding machine?

30cm in diameter. According to the inquiry of official website of Jialiyuan Technology, the fan diameter of 3 15 welding machine is 30cm. Jialiyuan Technology Co., Ltd. mainly deals in power battery protection board, solar controller, inverter welding machine, inverter power supply, switching power supply and so on. Our company is a formal company protected by official website certification law.