РОЛИКОВІ КОВЗАНИ 'АРЕА СФЕРЕКС'РОЛИКОВЫЕ КОНЬКИ 'АРЕА СФЕРЕКС'

摘要

A roller skates represent a pair of skates. Each skates contains the frame, the driving rings, the auxiliary rings, the driving balls, the fixing arches, the braking arches, the screw-shaped springs, the rolling elements and fixation clamps for the feet. The base of the frame is rectangular. The driving rings are connected with smaller sides, and the auxiliary rings with longer sides.