1. Glory-hole is the vital haulage passage in the mine of drift hole with the glory-hole method. Whether the glory-hole is normal or not may cause a tremendous influence to the mine. 溜井是采用平硐溜井开拓方式的露天矿山的运输咽喉，溜井正常与否对矿山生产影响极大。
2. Glory-hole is the vital haulage passage in the mine of drift hole with the glory-hole method. Whether the glory-hole is normal or not may cause a tremendous influence to the mine. 溜井是采用平硐溜井开拓方式的露天矿山的运输咽喉，溜井正常与否对矿山生产影响极大。
3. Screen series of closed factories and mines hole, square hole, rectangular hole, such as triangular hole sieve . 工矿筛系列有圆孔，方孔，长方孔，三角孔等筛板。
4. A kind of Rotary cultivator shell, it includes shell with transmission shaft axis hole and set oil hole, set oil hole end has end cover , magnet is in this end cover . 一种旋耕机机壳，它包括带有传动轴轴孔及放油孔的壳体，放油孔端头设有端盖，在该端盖内设有磁铁。
5. Top hole at the bottom of the hole must be smooth and without sharp edges, on both sides of the hole must be smooth and without sharp edges. 孔顶和孔底部必须圆滑无锐边，孔的两侧也必须光滑无锐边。
