Prestressing pc steel strand quality control

1) Raw material control

As the strategic partner and big customer of China's biggest steel company, Capital Steel Group, we have stable suppliers and high quality raw materials.

2) ISO9001: 2000 certificate

All of our equipments, production flow, and quality control system have passed ISO9001: 2000 certificate since 1997.

3) Strict product test

Both ends of one pc wire shall be inspected through stress relaxation test, 

tension test, hydraulic universal test, bending test and boroscope test, etc.