When purchasing steel gratings, pay attention to the shape and flatness of the steel gratings. If the steel gratings are purchased in large quantities at one time, avoid taking care of the flowers and weeding one by one. It is found that the steel gratings are flat or the shape is not beautiful enough. Requires exchange, do not underestimate the shape of the steel grating, the steel grating with good quality and no obvious holes in the welding points is a qualified steel grating.
It is necessary to pay attention to the inspection of the size of the steel grating. It is necessary to specifically measure whether the size of the steel grating meets the specifications and whether the dimensions are deviated. The steel grating should meet the standards required by the standard and the supply contract.
The performance check of the steel grating is also required. Manufacturers should regularly take samples for load performance testing of products, and should also provide testing, test reports and quality certificates according to user requirements.
Check the packaging of Chengdu steel grating. Generally speaking, the steel gratings are packed with steel strips when they are shipped from the factory, and the weight of each bundle meets the requirements of the customers. After the factory and the parties agree on the specifications, the supplier will pack according to the requirements of the customers.
Also check the packaging mark of the steel grating. The packaging mark shall indicate the code of the trademark or the manufacturer, the model number of the steel grating and the standard number. Each steel grating shall be marked with a number. The quality certificate of the product shall indicate the steel grade, model specification and standard of the steel grating product. No., surface treatment, appearance and performance inspection results, weight per batch, etc.
In addition to these, the quality certificate should be delivered to the customer as a basis for acceptance of the steel grating with the same batch of product. In consideration of the safety of the customer and the construction of the building, the manufacturer can also be required to provide a quality assurance certificate for the raw materials to ensure the quality of the steel grating.
