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A Block, Hanghai Square, Erqi District, Zhengzhou City, Henan, China
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Zhengzhou Duorui enterprise Co., Ltd Quality Control

your price is lower and your quality are better! I'm happy to work with you! D80 wing nuts sell very well at our market

—— Ravshan Kambarov

The diamond dowel's quality is better than our local!

—— Cristian Tronar

We are happy to work with Ada, she take care all our orders, great service.

—— Patrick King

ASB ribbed formwork is good use, my workers like it.

—— Abu Hamad

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QC Profile

Features of our construction material products:

 

1. High tensile strength material.
2. High process precision, precise thread.
3. Surface treatment: electroplated or hot dip galvanized.

4. ISO 9001 certificate.

 

 

How can we ensure products quality?

 

1. Over 10years experience factory

2. Advanced production line

3. Strict quality control of raw material

4. Company culture and management

5. Serious and responsible workers

 

Zhengzhou Duorui enterprise Co., Ltd quality control 0

 

 

Certification
  • China Zhengzhou Duorui enterprise Co., Ltd certification

    Standard:Business License

  • China Zhengzhou Duorui enterprise Co., Ltd certification

    Standard:ISO9001

  • China Zhengzhou Duorui enterprise Co., Ltd certification

    Standard:tie bar test report

    Scope/Range:formwork tie bar

  • China Zhengzhou Duorui enterprise Co., Ltd certification

    Standard:formwork coupler test report

    Scope/Range:formwork coupler

    Issued By:SGS

Contact Details
Zhengzhou Duorui enterprise Co., Ltd

Contact Person: Mr. Xu

Tel: +86-17603856227

Fax: +86-371-66632600

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