... board extruder 2.Smoothing surface,beautiful appearance,innocuity, mildew-free, no cracking and bend PVC board extruder 1.PVC lacquer ... -roller calendar. Then smoothing surface, beautiful appearance, innocuity, mildew-free, no distortion, no cracking and bending structure are available under ... , door and window of furniture, etc. 3.This production line can produce one-layer and multi-layer soft and hard ...