Auxiliary Pole: work with direction wheel at bottom of push board, ensure pipe moving direction.
辅助杆位于推板的两侧确保管材的前进方向。
2
The article introduces the product performance, raw and auxiliary materials, production process and equipment of PVC low foamed board as well as the importance of substituting wood with plastics.
本文介绍PV C低发泡板材的产品性能、原辅材料、生产工艺设备及以塑代木的重要性。
3
As replacement of the old devices, an intelligent control board for signals of power station auxiliary equipment was introduced.