Consisting of 2 sheets of flat paper sandwiched together with 1 sheet of corrugated paper, with the corrugated sheet being in the middle between the 2 sheets of flat paper. This feature is suitable for products of medium weight that do not require much emphasis on strength. Used as inner packaging for Inner Box. Standard corrugations: A, B, C, E, and G, as shown in the illustration below. There are 5 types: A, C, B, E, and G.

Consists of 2 sheets of flat paper, sandwiched with 1 sheet of corrugated paper. The corrugated paper is in the middle between the 2 sheets of flat paper. The properties are suitable for products with medium weight that do not require much strength. Used as inner packaging Inner Box Standard corrugation A, B, C, E, and G as shown in the picture below. There are 2 types: BC and EC.

Regular Slotted Container (RSC) or corrugated cardboard boxes with slotted lids are rectangular boxes with openings and closings on both the top and bottom. When packing products, all four flaps must be folded down and the box must be closed with tape.

Consists of 2 sheets of flat paper, sandwiched with 1 sheet of corrugated paper. The corrugated paper is in the middle between the 2 sheets of flat paper. The properties are suitable for products with medium weight that do not require much strength. Used as inner packaging Inner Box Standard corrugation A, B, C, E, and G as shown in the picture below. There are 2 types: BC and EC.