There are many types of bolt, such as: Divided according to the material, commonly used resin bolt, mortar bolt, glass fiber reinforced bolt, bolt support is widely used in underground caverns, tunnel support engineering and high slope management engineering, railway Bridges and other engineering projects, plays an important role in the maintenance of engineering stability, therefore, the quality requirements of the bolt is very strict, before the use of strict testing.

Test Range
Products that are tested frequently include: bolt, hollow bolt, resin bolt, wire rope bolt, slope protection net - bolt, combined hollow bolt, mortar bolt, hollow grouting bolt, self-feeding bolt body, glass fiber bolt, railway bridge bolt, tunnel bolt, self-drilling bolt, expanded shell bolt, pipe joint bolt, etc

Test item
Yield force, elongation after breaking, tensile strength, yield strength, appearance, diameter, straightness, bar shear strength, elastic modulus, ultimate tensile strain, density, twisting quality, rope breaking force, tensile strength, wire diameter, wire toughness, zinc layer adhesion, zinc layer weight, outer diameter, pitch, tensile force, yield force, etc.

Detection standard
TB/T 3209-2008 Hollow bolt technical conditions
MT/T 146.1-2011 Resin anchors - Part 1: anchoring agents
MT/T 146.2-2011 Resin anchors - Part 2: Metal rod bodies and their accessories
MT/T 1061-2008 Resin bolt glass fiber reinforced plastic rod body and accessories

About The Company

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1. Established in 1985, with more than 30 years of testing experience, the first batch of third-party impartial technical inspection institutions approved by the State Administration for Market Regulation.

2. There are offices in various provinces in China, with 12 branch laboratories, which are convenient and convenient, and the testing efficiency is high.

3. Testing capabilities, including 10,000+ parameters and 4,000+ products, covering more than 3,000 items including national standards, industry standards, and international standards.

4. The testing service industry covers metal products, roads, railways, bridges, tunnels, ports, civil construction, petroleum, water conservancy, environmental engineering, etc.

Qualification Image

Qualification Image

Inspection Process

Inspection Process


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  • E-mail:
  • Add.: No.280, Guanlin Road, Luoyang, Henan, China
  • Tel.: +86-4007878588