Plastic polyhedral hollow ball also called multiaspect hollow ball. It is a new type of
high efficient random packing. It is made from heat resistant and chemical stable
plastic material. It is composed of two hemispheres to form a whole ball shape.
Each hemisphere surface has several half fan-shape leaves, the upper and lower
leaves are staggered arranged. This design makes the polyhedral hollow ball lighter
weight, smaller wind and flowing resistance and good hydrophilic surface.
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