1. CD60 :60X27 Thickness : 0.40-0.55mm 2. UD27:28X27 Thickness : 0.40-0.55mm 3.CW50:48.5X50 Thickness : 0.40-0.55mm 4. UW50 :50X40 Thickness : 0.40-0.55mm , we confirm good quality about above product . They are sold on international market such as RUSSIA for many years .