| 英文名称: | | wild rubber | | 1,4-Polyisoprene | | Negative photoresist I | | 1,3-Butadiene,2-methyl-,homopolymer | | 1,3-Butadiene, 2-methyl-, homopolymer | | 3-butadiene, 2-methyl- homopolymer | | betaprene h | | isoprene d | | isoprene oligomer | | isoprene polymer | | isoprene, polymers | | poly(2-methyl-1,3-butadiene) | | poly(isoprene) | | NR(natural rubber) |
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