水晶砂（訓(xùn)練加厚型）
Product advantages:
The surface texture is processed by embossing technology, with moderate friction and beautiful texture.
Compound process production increases product stability and environmental protection.
Double glass fiber and cloth fiber are stable and stable.
High-density resin foam layer improves safety, shock absorption and rebound performance.
It is recommended to be applicable to all kinds of competition venues and training venues.
Produced with raw materials, the product has no peculiar smell.
New European standard composite process production, increasing product stability and environmental protection
