How to choose 304 Brush Stainless Steel Flat Bar Factory:
1. When selecting steel pipes, it must be determined that the material meets the standard.
1) From the price analysis, if the 304 stainless steel pipe is even lower than the general price of the 301 material on the market, it must be carefully identified, it is likely to be impersonated by other materials;
2) Identify whether the steel stamped material "304" is printed on the surface of the pipe, and ask for the manufacturer's quality certificate as a certificate;
3) It can be tested with an acid reagent, after 30 seconds, the material 304 will not change color, and the material 201 will turn black;
4) For bulk purchases, samples can be taken and sent to the national authoritative testing center for component testing.
2. Watch whether the color of the outer surface and inner wall of the 304 Brush Stainless Steel Flat Bar Factory is bright and smooth, whether the thickness is uniform or rough.
3. When purchasing 304 Brush Stainless Steel Flat Bar Factory, you should choose excellent products that have been evaluated by the Bureau of Quality and Technical Supervision. It is the most direct and effective purchase method to have a long-term use testimonial and a good reputation among customers.
4. There are often inner heavy skins, pits, and rolling blue lines in rolled pipes. Under normal circumstances, these are unavoidable and do not affect the use. However, when purchasing, you must choose as few as possible, especially when checking The inner surface.