外包膠采用聚氨酯材料，具(ju)有超強耐(nai)磨和(he)抗(kang)脫(tuo)落的(de)特性；產(chan)品尺寸(cun)和(he)軸承型號均符合KONE標(biao)準。

The circumjacent adhesive is made of polyurethane, which has super resistance to abrasion and peeling. The dimension and bearing model are matched to KONE standard.