How should I punch four holes?

It mainly depends on what the object is. If it is a simple knot, it can be tied directly into a bow pattern, so that the knot is both firm and beautiful.

Knot a knot, pronounced d m 65.

Knot a knot, pronounced d m 65.

Knotting strength is the breaking strength measured after the fiber is knotted. Also known as nodule strength. Knotting strength is related to fiber twist direction and knotting method. The knotting direction is the same as the fiber twisting direction on the contact surface at the knotting place, and the measured value is low. High knotting strength means that the fiber has good toughness and wear resistance.

Knotting strength, also known as node strength, refers to the breaking strength measured after the fiber is knotted. The unit is cN /dtex.