Select qualified suppliers or agents. Your company should have reviewed these suppliers or agents;

The purpose of purchasing steel must be clear, so that the technical requirements of the steel It must be in accordance with the standards and the special requirements of your project. These requirements must be clearly written in the attachments of the procurement contract. It cannot be written casually as "meeting the standard requirements";

The acceptance requirements for steel must be in accordance with the technical attachments of the contract. Acceptance one by one, with good supporting documents;

Quality certification documents should be valid for approval and should be reviewed by the responsible personnel of your company;

Technical parameters: grade, thickness , tolerances, heat treatment, surface condition, these basic steel mills can satisfy; warranty form, heat treatment cycle, surface condition, special chemical composition (such as carbon equivalent requirements), special mechanical properties (such as wanting to increase the lower limit of strength, etc.) , corrosion resistance (such as intergranular corrosion requirements), etc., as long as they are proposed on the project, they should be reflected in the procurement technical conditions and reach a consensus with the seller.

Other special regulations, such as intermediate inspection, etc.