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聚氯乙烯-丁腈橡胶共混物〈即丁月青橡胶改性聚氯乙烯〉
plast. polyvinyl chloride NBR blends
聚氯乙烯- 丁 腈橡胶共混物
: 3 phrases in 2 subjects
Plastics2
Polymers1