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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