- 30
- Sep
சீனாவில் வெர்னியர் காலிபர் உற்பத்தியாளர்
Calipers are used to determine the depth of the holes. The measuring rod has a main and an auxiliary scale (vernier for measuring fractions).
Calipers are used to determine the depth of the holes. The measuring rod has a main and an auxiliary scale (vernier for measuring fractions).