7. Carbon steel welding rod (GB3429-82), carbon electrodes made of carbon steel wire rod of high quality carbon structural steel. Main use: Mainly used in the manufacture SMAW welding core. 8. Carbon steel rod without twisting controlled cooling, hot rod (ZBH44005-88), carbon steel welding without twist and controlled cooling, hot rod is a twisted wire rod rolling mill in the blockade, and after rolling controlled cooling system to make. Its high dimensional accuracy, good surface quality, superior performance, is a high-quality steel welding rod. The main purposes: mainly for manufacturing a drug skin welding steel core of carbon steel hot rods. 9. Alloy structural steel hot rod (GB3077-82), alloy structural steel hot-rolled steel wire rod made of an alloy material rolling from. Alloy structural steel group a total of 26 steel, 78 steel grades. The production plant based on the demand side and the choice of different uses for the production of various grades. Main purpose: alloy hot-rolled steel wire rod is mainly used for drawing, metal products and structures. First, there is always a lot of connection points, such as wires and cables, wires and switches, wires and electric appliances, wiring trailer coupling, wires and asylum device connection point, etc. These joints and joints on the wire because of the accident prone electrical wiring The other parts have not the same as in the joints, the insulation is stripped, if the cloth wrapped around the poor and produce two lines collide, it may constitute a short circuit or spark fever Second, vulnerable to excessive contact resistance and fever joints in real time using the difference between such measures, nor to 'perfect' if the contact area is smaller than the cross-sectional area of ??the conductor, the credentials and the conductive area is inversely proportional to the resistance of the affair shows that the smaller the junction point contact area, the greater the resistance; the resistance greater, it is more easily fever joints than other parts of the conductor joint Easy fever if better quality, less heat generated, thermal premise, the heat quickly wrap hair out, military shield, the junction point temperature will not rise too high The possibility of causing an accident on the contrary, is caused by an accident on the great conductors coupling hook, then the contact area leads up to the equivalent of wire cross-sectional area of ??1/8, eight times so join both parts of the resistance of other premises, fever amount Similarly eight times, the site easy to produce another accident, hook the junctions at the outside vibration phenomenon, military shield factory shipments, but also showing off even when the situation, it may show a spark , military shield authentic cheap, it is easy to cause burning of combustible materials around the joints because the contact resistance is too large, it may generate heat, can discolor the metal conductor and the melt, causing the conductor insulation and other materials burning fire into fire incident military shield manufacturers shipped _ Xu Song Chong electronic products factory _ military shield by the Dongguan Shijie Xu Chong-electronic products factory provided. Dongguan Shijie Xu Chong-electronic products plant (chuangxs.1688.com) (www.chuangxs.1688.com) Dongguan, Guangdong, connectors leaders, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Song Chong-wook in electronic products factory leadership with the staff warmly welcome all inquiries negotiations to create electronic products factory Song Chong-wook better future.