According to inquiries on the Shaoxing Archives Network, the standard hole sizes for three-hole and one-line binding of archives are as follows:
1. The total length of the hole spacing is approximately 140~160 mm, from the middle hole to the edge. The hole length is 70~80 mm.
2. The vertical distance between the spine binding lines is 15~20 mm.
3. The binding is always on the left side, and the joints are placed at the back of the file.
4. The upper and lower ends of the file are set to 2.54 cm, and the left and right margins are set to 3.17 cm.