Nowadays, the development of the construction industry is more and more rapid, the use of building construction materials is also more and more, so some unscrupulous traders to seize this opportunity to manufacture counterfeit and shoddy products on the market, resulting in the continuous decline in product quality of the metal feedthrough industry, as the production of metal feedthrough manufacturers have a certain responsibility to talk about how to identify the authenticity of the metal feedthrough.

How to recognize the real metal pipe?

1, first of all, due to poor quality products raw materials for adobe, so the surface of poor quality metal pipe will have pitting phenomenon and there will be small cracks;

Metal conduit

2, secondly, with a fingernail scratch the metal threading pipe, if there is a scratch means that it is a low-quality product;

3, again, the poor quality of the pipe is made of bottom quality materials, impurity content is large, steel density is small;

4, finally, the cross-section of inferior steel pipe is generally oval, and the inner diameter size is very large, it is easier to identify with the naked eye.