... methacrylate polymerization,is an early development of important thermoplastic,its density is more than half of the ordinary glass, ... likeProduct Processing solutions Sawing,drilling,milling,turning,routing,carving,die-cutting,shearing with different tools or machines PMMA sheet Characteristics ... 1.19-1.22g/cm3,similarly the size material, its weight only then simple glass's half,the metal aluminum ...