1、 Maple: Maple Birch  22mm × width 60/82mm × length1810mm  22mm ×60/82mm ×1810mm，tongue and groove joints all round; Paint surface: paint surface layer with environmental protection products, which is a special paint for sports wood flooring.
2、Polyethylene film
3、Plywood:
Thickness 12mm × width1220mm × length 2440mm;
4、Upper Keel：30mm LVL Larch elastic keel
5、Intermediate Shock Pad: CSTY patent shock cushion layout fixed, spacing 400mm uniform layout, 10mm thickness.
6、Lower  Keel：30mm LVL Larch elastic keel
7、 Bottom shock absorber: CSTY patent shock cushion layout fixed, spacing 400mm uniform layout, 15mm thickness.