[Chai Jin cable tray to recommend the star product - bridge] According to the functional requirements of the main building to determine its grade and content, these systems include different types of cables and wires, some of which belong to the active cables (power supply voltage is generally DC12 / 24 / 48V and AC220V) cable tray where to sell, due to the continuous development of the construction industry are the times of cable tray and continue to be the market's recognition and acceptance of the localization industry's efforts cable tray, made of high quality cold-rolled steel products get attention selection of quality cold-rolled steel, cold surface craft galvanized, hot dip galvanized, electrostatic spraying, fire retardant paint, paint. Which products are widely used in petrochemical, metallurgy, electricity, schools communications, high-rise buildings, a beautiful shape cable trays, corrosion resistance, versatility extensive installation flexibility, range and other characteristics. In the "quality first, reputation for heavy cable tray brand, management-oriented, sincere service" purposes. [Chai Jin cable tray to recommend the star product - the bridge] bridge within its control cable does not exceed the total cross section s total cross section of cable tray s. 40% of the principle. Total cross section s control cable is: where: s1, s2, s3 ...... for various control cable bridge in cross-sectional area (including the sheath section) units of mm, d3 ...... within the outer diameter of the cable tray various control The unit is mm; nnn ...... the number of these same types of specifications of the cable. Corresponding control cable tray width b: where h is the height of the cable tray offer cable tray, in mm. When the cable tray installation indoors, in order to ensure the bridge straight beautiful, neat line, it is generally horizontal load deformation should be controlled within 4.0mm. Cable trays offer, Wenzhou cable tray, cable tray manufacturers to choose Chai Jin Chai Jin provided by Tianjin cable bridge Limited. Chai Jin Tianjin cable bridge Limited (www.tjcjdlqj.com) strong, credible, in Tianjin metal building materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chai Jin cable tray and you hand into the brilliant, for a better future!