... toxic.2, High surface hardness, luster, resistance to scratch.3 ,Self-extinguishing, fire resistance, impact resistance, resistance to cracking.4 ... processing operation:1,Pre-heating 2, Compression process 3, Decal program 4,Polishing procedure5,Quality checking Use ... fire is forbidden, Microwave and even are not allowed.3, Caution strong chemical corrosive cleaning products, high concentrations ...