We’ve been making plastic tubes and squares for almost 50 years, so we’ve learned how to make them with reduced die lines and consistent wall thickness. We make tubes and squares in acrylic, polycarbonate, ABS and a few other compounds In general, we can run: Diameters up to 8 inches Thickness: 0.020 inches to more than 0.250 inches Length: Typically range from 0.25 inches ... https://www.reevesextruded.com/markets/tubes-and-squares