He aha nā mea nui o nā mea hoʻoheheʻe? He aha nā mea nui o nā mea hoʻoheheʻe? Polyurethane, hao hoʻolei a me ke kila hoʻolei, huila nitrile rubber (NBR), nitrile rubber, huila laholio kūlohelohe, huila silicone fluororubber, huila laholio chloroprene, huila laholio butyl, laholio silicone (SILICOME), EPDM rub...
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