denture base material (typeⅡ) , also named room temperature curing denture base material, consist of two parts，powder and liquid. the main composition of powder and liquid are copolymer of methacrylate and methyl methacrylate respectively, and the powder is synthesized by suspension polymerization. main usage: mainly for denture bases making、repairing、relining、basing； standard packing: 100g/bottle, 100ml/bottle; 500g/bottle, 500ml/bottle. popular shade：0#～3#，any other shade are available. expiry date: powder，three year；liquid，two year.