52系列编号规格背宽材质厚度包装外箱尺寸5210A4.108mm0.6mm1/24/9651.5x34.5x35.5cm5220A4.2014mm0.6mm1/12/7251.5x42x35.5cm5230A4.3018mm0.75mm1/12/4851.5x32.5x35.5cm5240A4.4024mm0.95mm1/12/4851.5x41.5x35.5cm颜色：5260A4.6034mm1.05mm1/12/4855.5x51.5x35.5cm5280A4.8050mm1.05mm1/6/2474.5x51.5x35.5cm5200A4.10063mm1.05mm1/6/2485.5x51.5x35.5cm颜色：)