The polystyrene board is a white object made of expandable polystyrene beads containing a volatile liquid foaming agent, which is pre-heated and heated in a mold. It has the structure of fine closed cells.
Dec 30, 2021
The polystyrene board is a white object made of expandable polystyrene beads containing a volatile liquid foaming agent, which is pre-heated and heated in a mold. It has the structure of fine closed cells.
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