call us:( 86) 53371081
fax:( 86) 53371080

taicang zhongbo railway fastener co., ltd.-凯发官网地址

circumferential and ...

the tunnel bolts are divided into circumferential and longitudinal.

we are capable of producing various types of tunnel bolt, including curved tunnel bolt , spear bolt ,customized bolts are also available according to your drawings or samples ...

ø  standards: gb, arema, iso, uic,as,bs etc

ø  grade:8.8, 10.9

ø  material: carbon steel,  stainless steel

ø  surface: plain ,hdg ,black or as customer requirement


zbrf is a leading manufacturer of rail fastening, track work spare parts, tunnel bolts in china.
if you want to cooperate with us, you can get in touch with us by the following way.
  • no. 88, tao wan central road,
    shaxi town, taicang, jiangsu
  • ( 86) 53371081
  • ( 86) 53371080