Drilling machine operations and details in Tamil
ฝัง
- เผยแพร่เมื่อ 9 ก.พ. 2021
- Seven types of drilling machine in Tamil
1.Drilling operation
2.Reaming operation
3.Boring operation
4.Counter Boring operation
5.Counter Sinking operation
6.Tapping operation
7.Spot facing operation - วิทยาศาสตร์และเทคโนโลยี
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