采用鏈條傳動，適用于加工各種平板玻璃的直線平底邊及棱角，且調整玻璃加工厚度時，前倒棱磨頭能隨前梁同步移動。

　　Chain transmitting，suitable for straight-line edging with arris for various flat glass. Front arrisspindles moving with the fore beam synchronously when processing various thickness ofglass.