You can search and understand the specific models of three-roller and four-roller on Google, and their characteristics. In the third point of model selection, give customers some suggestions.
You can search on Google and learn about the three-roll reel machine and four-roll specific models, each with its own characteristics. Give the customer some advice when selecting a third-point model.
You can search and learn about the specific models of three roll bending machine and four roll bending machine on Google, and what are their characteristics. In the third point of model selection, give customers some suggestions.