... toughened polystyrenen.抗冲击聚苯乙烯,增韧聚苯乙烯 toughened safety glass钢化安全玻璃 toughened filter paper韧性滤纸 ...
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... 硬质路面 hard surfacing; 硬质滤纸 toughened filter paper; hardened filter paper; 硬质粘土 hard paste; ...
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