Name: HDG High Tensile Tunnel Bolt
Uploaded: 2026-08-26T20:43:55+08:00
Description: Watch the HDG High Tensile Tunnel Bolt video demo to see how it works, key features, and real-use scenarios. A helpful video guide before you buy.

HDG High Tensile Tunnel Bolt Video,Demo, How It Works & Features 2026-07-22 4980
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Product Specifications

Model NO.:

ZBRF

Certification:

Arema, Crcc, ASTM, Uic, Tb

Type:

Track Train

Product Grade:

4.6, 5.6, 8.8, 10.9

Usage:

Concrete Ring Connect for Tunnel

Size:

M20, M24 and Other Size Bolt

Surface Finish:

Plain, Black, Phosphate, Zinc, HDG

Inspection:

Internal and 3rd Parties

Sample Policy:

Sample Free, Freight Collect

Production Update:

Weekly Reports Will Be Provided

Application:

Tunnel Building

Raw Material:

Q235, 35#, 45#, 35CrMo, 42CrMo, 40cr

Inspection Reports:

Chemical Composition, Physical Property and Sizes

Trademark:

ZBRF

Transport Package:

Woven Bag and Wood Pallet

Specification:

SGS

Origin:

China

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HDG High Tensile Tunnel Bolt Video,Demo, How It Works & Features

Product Specifications