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How to choose high quality stainless steel pipe?
- Mar 19, 2018 -

1. Identify whether the surface of the pipe is marked with "304" stamped data and ask for the manufacturer's quality certificate and quality assurance certificate.

2, check with acidic reagents, 30 seconds after the material 304 does not change color, 201 becomes black.

3, to see the outer surface and the inner wall of the tube is not bright and smooth, the thickness is not uniform or rough appearance.

4. When purchasing, you should choose the provincial-level or above famous brand products determined by the Quality and Technical Supervision Bureau. Long-term use of witnesses and excellent reputation among customers are the most direct and useful purchasing methods.