Lapidary machines Presentation - by S.K.Y. Gem-Tech Ltd.
26:18
IGT Gem Cutting + Preforming Faceting Demonstration
29:20
Gemstone faceting: cutting a huge quartz stone (portuguese cut)
14:43
Super Hard! Process of making Diamond cutting Blade. Diamond Tools Factory in Korea
10:15
Gem Cutting by Thai Gemcutters
28:14
Top 4 Fantastic Mass Production Amazing Manufacturing Process Videos || Recycling Process
15:51
¡Cómo encontrar diamantes en bruto en ríos y rocas antiguas!
24:45
See This Repairing Of Broken Grass Cutter Machine My High Efficiency Of This Stage…
29:51