... rigid PU foam 硬质聚氨酯泡沫，聚氨酯硬泡 rigid Segment 硬链段 rise time 起发时间 ...
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rigid d Segment 硬链段
rigid chain segment 刚性链段
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This segment includes the production of rigid container sheet, as well as sheets and plates used in the transportation, building and construction and distribution markets.
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