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| The National Important New Product
Certificate |
Science and Technology Progress
Certificate of Tianjin Municipality |
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| Bureau Veritas Certification
of Management System |
Patent Certificate of Dimension
Measuring
Equipment for Polygonal Round Steel and
Ribbed Steel Bars |
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Patent Certificate of Characteristic
Dimension Measuring Instrument for Ribbed Steel Bars
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Patent Certificate of Dimension
Measuring Equipment for Ribbed Steel Bars, Rods and Wires |
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| Hi-tech Enterprise Accreditation Certificate |
Patent Certificate of Sectional Dimension
Measuring Equipment for High-speed Moving Object |
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| The evaluation of expert (front) |
The evaluation of expert (back) |
