材料：采用進口高分子工程合成料制造。(絕不單使用聚丙烯及聚乙烯材料)

　　特點：具有抗碰壓、不變形、表面光滑、高耐磨、抗老化。

　　Material:Imported polymer engineering synthetic material manufacturing. (Never use polypropylene and polyethylene materials alone)

　　features: With anti-collision pressure, non-deformation, smooth surface, high wear resistance, anti-aging.