How to distinguish steel bars from different manufacturers

First of all, there are signs on the surface of the steel bar, such as 4E KG 18, indicating that it is a steel bar with the specification of 18mm produced by Kunming Steel. And the whole bundle of steel bars will have a steel bar number. The following is the name of Hegang for your reference.

The brand of steel bar includes product name, implementation standard, specification, batch number, length, weight, production date, customer name, etc. Beijing Gan Shengcheng reminds you that you must know the difference between true and false steel bars before buying them for your own use. Don't buy those that are too cheap. You know, the price is cheap and there is nothing good.