The fastening system is the intermediate connection part connecting the rail and the sleeper.，As an important component of the track structure，With fixed rail position、Prevent longitudinal and lateral displacement of rail、Function of preventing rail from overturning。At the same time，It also provides the necessary elasticity and insulation.。

Longchang Railway Construction Heavy Industry Co., Ltd. has fully automatic elastic strips.、Bolt production equipment and perfect fastener system testing equipment，Stable and reliable product quality。There are more than 30 types of fasteners produced by the company.，Including high-speed rail fastener、Heavy haul railway fastenings、Ordinary speed railway fastener、Fasteners for urban rail and subway，And magnetic levitation、tramcar、Mountain rail and other new rail transit fasteners，Among them, the market share of high-speed railway fasteners has always been in the forefront of the industry.。The company has 46 authorized patents for fastener products.，Among them, there are 11 invention patents.，Won 5 provincial and ministerial science and technology progress awards，One Sichuan Patent Award。

The company's high-speed railway fasteners are successfully used in Hefei-Nanjing、Ha Da、Shanghai and Hangzhou、Hanyi、Shanghai and Kunming、Xiashen、Yuwan、Cheng Gui、Many high-speed railway trunk lines such as Chengdu and Chongqing are supplied in large quantities.，Hefei-Nanjing Railway is the first domestic high-speed railway in China.，Harbin-Dalian Railway is the first cold high-speed railway in China.。Application of Heavy Haul Railway Fasteners in Wari Railway、Haoji Railway、Yumo Railway, etc，Fasteners for ordinary speed railway in China-Laos Railway、Guinea Dar-San Railway、Kaka Railway, Nigeria、Vietnam Railway、Overseas projects such as Brazil's Vale Freight Railway are widely used.。Urban Rail and Metro Fastener Products Cover Beijing、Guangzhou、Shenzhen、Shenyang、Chengdu、Wuhan、Chongqing、Xi'an and other 35 cities，Maglev Fastener Used in Phoenix Maglev、Qingyuan Maglev and other projects。