Specification model
Extra large (600*400*500)*five layers of extra hard,No. 1 (530*290*370)*five layers of extra hard,No. 2 (530*230*290)*five layers of extra hard,No. 2 (530*230*290)*three layers of high-end,No. 3 (430*210*270)*five layers of extra hard,No. 3 (430*210*270)*three layers of high-end,No. 3 (430*210*270)*three-layer mid-range,No. 4 (350*190*230)*five layers of extra hard,No. 4 (350*190*230)*three layers of high-end,No. 4 (350*190*230)*three-layer mid-range,No. 4 (350*190*230)*three layers of high quality,No. 5 (290*170*190)*five layers of extra hard,No. 5 (290*170*190)*three layers of high-end,No. 5 (290*170*190)*three-layer mid-range,No. 5 (290*170*190)*three layers of high quality,No. 6 (260*150*180)*five layers of extra hard,No. 6 (260*150*180)*three layers of high-end,No. 6 (260*150*180)*three-layer mid-range,No. 6 (260*150*180)*three layers of high quality,No. 7 (230*130*160)*five layers of extra hard,No. 7 (230*130*160)*three layers of high-end,No. 7 (230*130*160)*three-layer mid-range,No. 7 (230*130*160)*three layers of high quality,No. 8 (210*110*140)*five layers of extra hard,No. 8 (210*110*140)*three layers of high-end,No. 8 (210*110*140)*three-layer mid-range,No. 8 (210*110*140)*three layers of high quality,No. 9 (195*105*135)*five layers of extra hard,No. 9 (195*105*135)*three layers of high-end,No. 9 (195*105*135)*three-layer mid-range,No. 9 (195*105*135)*three layers of high quality,No. 10 175*95*115)*five layers of extra hard,No. 10 175*95*115)*three layers of high-end,No. 10 175*95*115)*three layers of mid-range,No. 10 175*95*115)*three layers of high quality,No. 11 (145*85*105)*three layers of high-end,No. 11 (145*85*105)*three-layer mid-range,No. 11 (145*85*105)*three layers of high quality,No. 12 (130*80*90)*three layers of high-end,No. 12 (130*80*90)*three-layer mid-range,No. 12 (130*80*90)*three layers of high quality