- 30
- Sep
ผู้ผลิตเวอร์เนียคาลิปเปอร์ในประเทศจีน
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).