External wall insulation system with three approaches: extruded polystyrene board, commonly known as XPS boards, or expansion of polystyrene board, commonly known as EPS plate.
外墙保温体系有三种做法：用挤塑聚苯板，俗称XPS板，或者膨胀聚苯板，俗称EPS板。
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Insulation with more uniform thickness of single layer may be extruded by using this cross-head without die adjustment.
使用时不必调节模具就能挤出具有较均匀的单边厚度的绝缘层。
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This article introduced basic property, process route and current situation in China of PS extruded foam board as insulation material.