PC/PMMA Optical Sheet Extrusion Line To meet the demands of market, JWELL supply customer PC PMMA optical sheet extrusion lines with advanced technology, the screws are specially designed according to the rheological property of raw material, precise melt pump system and T-die, which makes the extrusion melt is even and stable and the sheet has excellent optical performance. Precise calender system guarantees the mechanical & physical properties of sheets. It is mainly used in automotive industry, film switch of electronics, LCD for computer, mobile, sunglass, helmet,special printing, medicine packing and so on areas.