编码描述:poly(oxy-1:4-phenylenesulphonyl-1:4-phenyleneoxy-14-phenylene isopropylidene-1:4-phenylene) note 6(b) refers (kg) 编码来源:英国原始海关数据 产品标签: derivatives,plastics,composite,ticl,diagnostic,foil,wood,hea,salt,ether