Parallel rollers: rollers parallel to the conveyor into items for the set, parallel to the lower roller support for a return conveyor;
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The improved belt box is composed of two semicircular guard discs and parallel rollers with equal length positioned between the guard discs.
所改进后的带盒由两个半圆形挡盘和定位在挡盘之间的平行、等长的轴辊组成。
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