High-speed rail bolts \ dedicated high-speed rail bolts \ embedded bolts of high-speed rail: Handan City the Senning Fastener Manufacturing Co., Ltd. Business Unit 
 Railway standard fasteners of high-speed rail, highway standards, steel standards, manufacturing companies the Tower fastener production, sales and service as one of the modern fasteners, standard parts manufacturer; Our main products are: stud welding cylinder head stud welding, subway bolt, tower bolt, nut Tower, Tower bolts, tower fasteners, high-speed rail bolt, nut of high-speed rail, guardrail bolt, railway spike grid of high-strength steel bolts, steel torsional shear high strength bolts connecting steel connections made with high strength large hexagon head bolts.