The vernier caliper is also one of the commonly used tools in teaching and production.

The vernier caliper is also one of the commonly used tools in teaching and production.

The vernier caliper is also one of the commonly used tools in teaching and production.-MasterLi, ໂຮງງານຈີນ, ຜູ້ສະ ໜອງ, ຜູ້ຜະລິດ