Our Certificates
The products meet the international standards, well received by domestic and foreign customers.
![ISO](http://www.hbtbls.com/uploads/ISO.jpg)
![39f71621](http://www.hbtbls.com/uploads/39f71621.jpg)
Hex Bolt Test Repot
![hex bolt test repot-1](http://www.hbtbls.com/uploads/hex-bolt-test-repot-1.jpg)
![hex bolt test repot-2](http://www.hbtbls.com/uploads/hex-bolt-test-repot-2.jpg)
![hex bolt test repot-3](http://www.hbtbls.com/uploads/hex-bolt-test-repot-3.jpg)
Hex Nut Test Report
![hex nut test report-1](http://www.hbtbls.com/uploads/hex-nut-test-report-1.jpg)
![hex nut test report-2](http://www.hbtbls.com/uploads/hex-nut-test-report-2.jpg)
Thread Rod Test Report
![thread rod test report-1](http://www.hbtbls.com/uploads/thread-rod-test-report-1.jpg)
![thread rod test report-2](http://www.hbtbls.com/uploads/thread-rod-test-report-2.jpg)
The products meet the international standards, well received by domestic and foreign customers.