材料：合成料。(絕不單使用聚丙烯及聚乙烯材料)

　　特點：耐高溫、高強度、耐磨、零下10℃不脆、高溫120℃不變形。

　　Material:synthetic material (patented product). (Never use polypropylene and polyethylene materials alone)

　　Features:High temperature resistance, high strength, wear resistance, -10℃not brittle, high temperature 120 ℃ does not deform.

　　★ 周轉箱規(guī)格型號：(保八年老化期)

　　Turnaround Box Specification Model: (Bao eight years aging period)