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、Upper Plywood:
Thickness 12mm × width532mm × length 1220mm;
4、Lower Plywood:
Thickness 12mm × width610mm × length 2440mm;
5、Steel Groove Keel：2.0mm Galvanized steel plate cold pressing production
6、Shock cushion: shock cushion layout fixed, spacing 400mm uniform layout, 15mm thickness.
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