Coulomb e series

1. Minimize the overall cost of project
2. Under the same mechanical property, the weight of anchor bar is much lighter;
3. The elongation of anchor bar is not less than 8%
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Coulomb s series

1. The properties of anchor bar can meet the international standard;
2. The elongation of anchor bar is not less than 12%;
3. The mechanical properties of coupler and nut can reach to the theoretical ultimate load of anchor bar.
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Coulomb x series

1.High performance SDA system: The elongation can reach to more than 15% and the impact resistance can reach to 39J at -20 ℃;
2. Stainless SDA system: The materials adopt 316L or 304 stainless steel with good anti corrosion performance and high strength.
3. Superstrength SDA system: It has very high strength, S355 or 28Mn6 material is adopted.
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Coulomb C Series

The Customized Series,Meet All Your Customized Demands

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1. Multi-channels to reach us at any time
2. 7*24 online, super-fast response


1. High-efficient production
2. Keep you informed every production progress
3. Personalized service
4. One-to-one service strategy


1. Goods tracking
2. Save time and money for you
3. All-round customer support


Incoming inspection

Raw material, workblank and other auxiliary material will be inspected.
Sinorock® cooperates with leading enterprises of raw material. The quality of raw material is assured to be absolutely credible.

Process quality control

Sinorock implement "three inspection system", which are self-checking, mutual inspection and specialized inspection.
Patrol inspectors examine every working procedure strictly according to the production technique. They record data, identify marks, and archive the records regularly.

Finished product inspection

Finished products will be tested according to the process of delivery inspection.
Only qualified products can be allowed to delivered out of storage. All products have their valid identities to ensure product traceability.