The manufacturing method used to make PVC cricket balls, the manufacturing process of such balls can include the following steps:

The slurry is injected into a rotational molding mold and heated and plasticized in the furnace to form an outer spherical skin.
In the middle of the first injection of liquid slurry into the mold, open the secondary injection port designed on the mold, and inject the material of the inner ball skin into the mold again for secondary molding, so that the outer ball skin and the inner ball skin are combined.
Pull the mold out of the heating furnace body, put it in water to cool, then loosen the bolt, open the mold, and take out the ball.