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Why Can We Always Ensure Excellent Quality

Quality Control

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

Certification

Zhengzhou Duorui enterprise Co., Ltd Certifications
Standard: Business License
Zhengzhou Duorui enterprise Co., Ltd Certifications
Standard: ISO9001
Zhengzhou Duorui enterprise Co., Ltd Certifications
Standard: tie bar test report
Scope/Range: formwork tie bar
Zhengzhou Duorui enterprise Co., Ltd Certifications
Standard: formwork coupler test report
Scope/Range: formwork coupler
Issued By: SGS
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