Supply Harbin GQF-Z40-type bridge expansion joints

 Code representation of bridge expansion joints and People's Republic of China Communications Industry Standard representation consistent with GQF-Z80-type expansion joints, for example, which is the transportation industry standards GQF bridge expansion joint device Code Type Code:.. E said profiled steel The shape of the telescopic device numbers indicate the amount of displacement: 80mm NR and CR said rubber types: NR said natural rubber, CR represents neoprene GQF-Z40-type bridge expansion joints Installation Notes 1, GQF-Z40-type bridge expansion joints according to the design requirements of all assembled, shipped by the manufacturer or user construction site. Transportation as it is longer than the allowable limit or for other reasons can not be the whole transport, you can use the method of transport split. 2, after arriving at the construction site of bridge expansion joints, its storage location should be as close to the installation location and placed at least 30cm above the ground on the support. 3, the same excellent bridge expansion joints, different quality of the installation, use of effects and durability have significant differences. This is reflected in our research question speaks expansion joint device is to ensure the quality of construction and installation of expansion joint device using the good and bad effects of the last key. GQF-Z40-type bridge expansion joint installation method to install GQF-Z80-type expansion joint device should be as good on the road after the pavement, expansion joints before installing the device, are required to keep the groove width, depth and be embedded steel inspection, installation of expansion joints to conform to the requirements of the device. 2, cleaning slot, you must put all the dirt, dust and other unwanted stuff all be cleared.