High Quality Curved Tunnel Bolt, Curved Tunnel Bolt for Subway, Tunnel Bolt for Subway Construction Suppliers in China

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Curved Tunnel Bolt  for Subway Construction

Curved Tunnel Bolt for Subway Construction

    Packaging: woven case
    Brand: ZBRF
    Transportation: Ocean,Land,Air,Express
    Place of Origin: China
    Supply Ability: 200000PCS/Month
    Certificate: ISO4001/ISO9001/ISO45001
    Port: Shanghai

Product Description

Curved Tunnel Bolt are classified under the special type of bolts that are known as structural bolts which can be produced in various grades, sizes and load capacities depending on their specific use. These tunnel/segment bolts are utilized to make transportation through undersea and underground tunnels possible by binding together a number of metal beams and posts which make up the tunnel’s frame.


Application of Curved Tunnel Bolt

To be used for connecting concrete ring when Tunneling


Type of Curved Tunnel Bolt

There are straight one and curved one.The straight one should be used and assembly with plastic thread inserts.



Photos of Curved Tunnel Bolt

Segment Tunnel Bolts


Technical Requirement of Curved Tunnel Bolt


1.Material :grade 4.6,5.8,6.8,8.8,10.9,12.9


2. finish

Plain,Dacroment,Hot Dip Galvanized


Supply city of Curved Tunnel Bolt


Suzhou,Hefei,Shenzhen,Nanjing,Changchun,Chengdu,Xuzhou,Xiamen,Fuzhou,Wuhan,Lanzhou,Dongguan,Foshan











TAICANG ZHONGBO RAILWAY FASTENING CO., LTD.

 Taicang Zhongbo Railway Fastening Co.,Ltd is a leading manufacturer of railway fastening,with its mission of supplying high quality railway fastenings and reasonable prices to world wild railway. In ZBRF,customers have more choice of rail fastening solution,due to our wide range of products in different design and standards. The Initial team was devoting the production and developing technology of railway fastening since 1990's,Through these years'efforts,we have exported our products to more than 60 countries globally.Products meet main local railroad specifications like AREMA,DIN,UIC,EN,BS,AS etc.Certificates were awarded by our clients for approval of suppliers from the main railroad companies.

Company Info

  • Company Name: TAICANG ZHONGBO RAILWAY FASTENING CO., LTD.
  • Representative: Lin bo
  • Product/Service: Fastening for Railroad and Urban Transit , Track Work Fasteners , Crane Rail Fasteners , Fasteners for Turnouts , Tunnelling Materials , Rubber Products
  • Capital (Million US $): 56,000,000
  • Year Established: 2008
  • Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
  • Export Percentage: 41% - 50%
  • Total Annual Purchase Volume (Million US $): US$5 Million - US$10 Million
  • No. of Production Lines: 5
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 1,000-3,000 square meters
  • Factory Location: 中国江苏省太仓市沙溪镇北陶湾路68号
  • Contact Person: Ms. Stella
  • Tel: +86-0512-53208521
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