Washing machine with integrated tub/drum

An integrated tub/drum for a washing machine, comprising:

• a drum side that has an inner surface with one or more lifters thereon;
• a first end panel that is connected to the drum side and is configured to close one side of the drum side;
• a second end panel that is connected to the drum side and is configured to close another side of the drum side, and has a through hole at or in a center thereof;
• a drive shaft that is connected to the first end panel, and that receives a rotational force from a motor;
• and
• a hollow shaft that provides a passage that communicates with the through hole of the second end panel for a flow path configured to supply or discharge water, and that overlaps and is coupled to an inner or outer surface of a rim that extends from the through hole of the second end panel, or extends outward in a radial direction with respect to the through hole and is configured to overlap and be coupled to an inner or outer surface of the second end panel.