... panel and the light core materials. The middle materials are usually foam, rock wool, glass wool, polyurethane, etc, and the glue ... life 4)The color coated steel sandwich panel is the newest environmentally friendly building materials, which has the rate of ... 0-4.5m/minute( depends on adhesive foam speed) 3)Machine weight: 16MT 4Machine character: Horizontal type, uninterrupted production, stepless ...