vinyle乙烯基vinyln.乙烯基vinylsulfone dyes乙烯砜染料vinyl resin fiber乙烯树脂纤维Vinyl - acetate醋酸乙烯酯vinyl ethyl ether乙烯基乙醚vinyl-copolymer乙烯系共聚物vinyl cyclohexene乙烯基环己烯vinyl ether resin乙烯基醚树脂vinyl phthalimide乙烯基邻苯二酰亚胺vinyl pyrrolidine乙烯基吡咯烷酮vinylon fibre mil维尼纶厂