2) fasteners: The advantage is suitable for pre-plated parts, easy to change adjustment, easy beautification proof distribution box specifications, parts can be standardized design proof distribution box type, and pre-production inventory, frame dimensions error. The disadvantage is not as good as welding rugged, high precision parts, processing costs relative rise. Fasteners are generally of standard parts, which are the main types of conventional screws, nuts and rivets, rivet, and tightening and can fine-tune the clamp nut and pull solid preload nut, as well as self-tapping screws. There is also a dedicated fastening screw (mostly imported low voltage cabinet with special fastening screws). [Zhejiang Koretoyo explosion-proof electrical Ltd. Tianjin Office to recommend the star product - Explosion-proof distribution box distribution box] price factors are as follows: First, the housing type of protection. There IIB and IIC grade level of proof distribution box, you need to provide us with proof mark when ordering. Second, the cabinet material. There are aluminum, plastic and stainless steel. Different material prices is certainly different this point we all know. Third, which is filled with appliances. What type of circuit breakers installed, is slightly off (miniature circuit breaker) or plastic shell, with or without the master switch, master switch much proof distribution box outlets, with or without leakage, all switches with leakage or total switch with leakage. Fourth, the appliance brand. As we all know, the added value of the brand is still quite large, so this should also be taken into consideration and friends of proof distribution box model, professional-known manufacturers Koretoyo explosion-proof power distribution box by Zhejiang Koretoyo provide explosion-proof electrical Ltd. Tianjin Office. Zhejiang Koretoyo explosion-proof electrical Ltd. Tianjin Office (www.tjfangbao.com) is Tianjin, explosion-proof lighting leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Explosion in Koretoyo leadership with the staff warmly welcome all inquiries negotiations to create Koretoyo better future proof.