Each electric factory is equipped with different types of welding head (soldering iron tsui, tip), but the basic shape is pointed, horseshoe, flat tip shape, blade shape. Each welding head (soldering iron tsui, tip), the head of the basic same, the difference is that welding head (soldering iron tsui, tip), body size, in order to and your soldering iron, electric welding machine accessory. General electric, electric welding machine brand different matching of welding head (soldering iron tsui, tip) status is also different. But there are exceptions, such as: common external heated soldering iron (30 w, 40 w, 60 w... Due to the use of common cheap, on the market of 30 w, 40 w, 60 w... Welding head (soldering iron tsui, tip) can be used. Another is 936 soldering station with 900 m series welding head (soldering iron tsui, tip). The 936 soldering station brand many, but is the white light 936 soldering station. On the market all of the 936 stations and 900 m series welding head can be used.