挂杆为一细长、薄壁管，可折叠衣撑由相对的两个折叠臂组成。
The hanging bar is a long and thin light-wall conduit. The folding clothes hanger is composed of two relative folding arms.
撑衣框的一边通过圆柱螺旋扭转弹簧的中心孔贯穿在大、小弧夹片的通孔中。
One side of the clothes-supporting frame passes through the centre hole of the cylindrical helical torsion spring to permeate in the through holes of the big arc clip and the small arc clip.
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