A factory wants to cast a cuboid part with a length of 32 cm, a width and a height of 4 cm, and cast it into a cube part. What is the side length of the cube part in centimeters?
某工厂想把一个长是32厘米，宽和高都是4厘米的长方体零件，熔铸成一个正方体的零件，正方体零件的棱长是多少厘米？
<result>8</result>