Que. 2. Centre drilling is an operation of.......?

A. Drilling and countersinking B. Drilling and counter boring C. Marking the centre location before drilling D. Enlarging the diameter of a hole

• Vijaykharbade
• 10492 दृश्य
• 43 उत्तर

• b

  • Hetram
  • 20 सितम्बर
  • 0 टिप्पणी

  0

  ---

• c

  • Arun
  • 18 सितम्बर
  • 2 टिप्पणी

  20

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• a hoga

  • Jitendra
  • 18 सितम्बर
  • 0 टिप्पणी

  1

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• 1
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