The main difference between the C nail and the D nail is that the shape is not the same, as the name suggests, the C nail is like the letter c, and the D nail is like the letter D.
C nail English abbreviation C-ring, common models are SC-660, SC-6
D nail English abbreviation D-ring, the common model is HR-22
Both are widely used in livestock breeding equipment, livestock breeding equipment, furniture manufacturing and so on
