... rubber neck 橡胶套环 rubber packer cup 封隔器橡胶皮碗 rubber plastic blend 橡塑共混 ...
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It is made from a blend of crushed rock, rubber and polyurethane, a synthetic plastic that replaces bitumen as the binding agent and allows even bigger pores in the road surface.
ECONOMIST: Quieter traffic: When the rubber hits the road | The
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