A corrugated plastic box and a method for manufacturing a corrugated plastic box from a blank are provided. The method includes the steps of forming rounded edge seals on the perimeter edges of the blank, pre-sealing portions of the blank to form a plurality of areas in which major and minor flap slots and a glue tab are desired, ultrasonically scoring the blank to form a plurality of flap score lines, and cutting the blank through the plurality of pre-sealed flap slots and glue tab, leaving a sealed edge.

The present disclosure provides a folded side plate locking mechanism and a folded pull rod storage box, wherein the folded side plate locking mechanism includes a lock body, a lock tongue and an elastic body. When a folded side plate is unfolded in a plane, a retaining ring is provided on a lock catch, and the lock body is pressed to keep the lock catch far away from a side wall of the retaining ring. The lock body and the lock tongue are in an unlocked state. At the same time, the elastic body is deformed under force to accumulate energy. An included angle is formed in the folding process of the folded side plate. The lock tongue is separated from the lock catch. The lock body is released. The lock body is restored to a locked state under the elastic force of the elastic body.

A folding basket includes a bottom frame panel having a first bottom frame and a second bottom frame on each long and short sides. A first side frame panel is pivoted to the first bottom frame. A second side frame panel is pivoted to the second bottom frame. Two accommodating portions are horizontally recessed in an outer side of the first side frame panel. A locking member is horizontally and movably installed in each accommodating portion. Two ends of the locking members are respectively engaged with side edges of the first and second side frame panels. When the locking members are pulled, the locking relationship between the two ends of the locking members and the side edges of the first sand second ide frame panels is released, so that the first side frame panel and the second side frame panel are foldable inward sequentially.

A folding basket includes a bottom frame panel having a first bottom frame and a second bottom frame on each long and short sides. A first side frame panel is pivoted to the first bottom frame. A second side frame panel is pivoted to the second bottom frame. Two accommodating portions are horizontally recessed in an outer side of the first side frame panel. A locking member is horizontally and movably installed in each accommodating portion. Two ends of the locking members are respectively engaged with side edges of the first and second side frame panels. When the locking members are pulled, the locking relationship between the two ends of the locking members and the side edges of the first and second side frame panels is released, so that the first side frame panel and the second side frame panel are foldable inward sequentially.