1.Internal gas-assisted molding injects high-pressure gas into the plastic melt during injection, using gas pressure to drive melt filling the cavity.

2.External gas-assisted molding applies gas pressure to the mold cavity surface to improve product surface quality.

Advantages:

1.Eliminates surface shrinkage marks and deformation, improving product appearance quality.

2.Reduces material usage and costs while enhancing product strength and rigidity.