Shandong Hengtong Expansion Joint Manufacturing Co.,Ltd is located at the foot of the Tai mountain as the head of the five mountains ¡°World Double Inheritance¡±,a large-scale factory which is specialized in expansion joint of the corrugated pipe design,research and development,manufacture;has ¡°People¡¯s Republic of China Special Equipment (pressure piping component)Manufacturing Permit¡±,has passed the ISO9001 quality control system authentication,thereinto,¡±multi-corrugation(containing single-orrugation) thick wall integral forming metal corrugated expansion joint¡±has obtained the national patent (patent number:ZL200520124753X)and the national patent third prize outstanding prize while passed new product and new technical appraisal of the Shandong Province Economic Trade Committee.
       DN3950¡Á42mm Hydraulic Integral Forming Expansion Joint which aims to realize the localization of VAC Reactor (Vinyl Acetate Reactor) has passed the technical expertise of CCIEA (China Chemical & Industrial Equipment Association) in June, 2008. After examination, CCIEA points that this product not only fills the blank of expansion joint manufacture in China, but also can be used to substitute for importing counterparts from abroad, and the technology of this product has reached the highest level in China up to the present.
       ¡°Tongpeng brand ¡±expansion joint products are widely applied to the scopes such as the petroleum,petro-chemistry,chemical industry,electric power,thermal energy,water conservation,metallurgy,aviation,astronautics,ship, nuclear industry and pressure vessel and so on,and has been exported to the countries such as the South Korea,US,Indonesia,India,Japan,Nepal,Turkey,Belgium and so on which was appreciated by users.
       The company shall devote to the technical innovation to strive for the development,positively promote the new material,new technologic application,struggle for fine,large-scale,localization manufacturing capacity for our country expansion joint of the corrugated pipe.