Home > Term: Crown pillar
Crown pillar
Açık bir stope üstündeki bir cevher ayağı duvar destek ve koruma için yukarıda duvara deri değiştirme üzerinden yaptı.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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ผู้สร้าง
- Korkmaz1976
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(V.I.P) 31420 points - 100% positive feedback
