Where do you usually go to find out the price of scrap steel?

I'm in the business of recycling, and I usually read it on the treasure exchange website. Every day, the treasure-changing website updates the supply and demand information of waste materials such as scrap metal, waste plastics, waste paper, waste textiles, waste leather, waste electronic equipment, second-hand equipment, market information, latest information, door-to-door charges, logistics express and so on. The information is still quite detailed and quite new.