Packing corrugated cardboard boxes, the biggest difference on corrugation is their thickness. A tile is thicker, B tile is thinner than A tile, E tile is the thinnest, but E is the most commonly used. , B tiles, A tiles use slightly less than the first two, if you use A tiles, you may use five layers of EB tiles instead.


A flute: 4.5-5.0mm, good elasticity, large height and spacing, good shock absorption, suitable for products that are fragile and require high impact and collision.

B flute: 2.5-3.0mm, combining the characteristics of two types of AB type, with sufficient rigidity and shock absorption performance.

C flute: 3.5-4.0mm, suitable for making product packaging with rigidity without requiring shock absorption protection performance, such as canned food, small package food, small hardware, etc.

E flute: 1.1-2.0mm, can make the surface of the carton flat, more rigid, suitable for high-quality printing, and save transportation and storage space.


E flute, also known as micro corrugation, is the finest corrugation in production at present. The reason why E flute has developed rapidly in the packaging industry is its three major advantages:

1. High compressive strength-protect the product more reliably. As far as the characteristics of the corrugated paper itself are concerned, the compressive performance of the micro corrugated shipping box exceeds the general solid carton under the same weight.

2. Good buffering performance-replacing traditional inner village is good for environmental protection. Using micro-corrugated cardboard as a lining to replace traditional cushioning materials is environmentally friendly and can increase compressive strength.

3. Good printing effect-mini corrugated cardboard can be printed directly on offset printing. The method of direct offset printing makes the fine corrugated packaging printing more exquisite, which is highly display and advertising, which greatly improves the packaging grade.