Track bolt is a specially for the railway construction and maintenance of railway standard, my company perennial production supply various specifications of the track bolt length. My company`s track bolts can be in accordance with TB/T2347-93, American railway standard AREA or ASTM, British standards and international standards on railway alliance standard UIC for the production. My company can according to customer requirements for black, electro-galvanizing processing. Our company produces the rail bolt specifications, excellent material, process science, stable quality, inspection strictly, many bid each big railway construction projects, in be used actually by local user's consistent approbate, welcome incoming telegram, rail bolt demand units your patronage!