【运输】聚羧基酸，不饱和的【生活】多聚羧酸、不饱和的

homopolymers, polycarboxylic acids

hydroxy polycarboxylic acids

polymers of unsaturated polycarboxylic acids

benzene polycarboxylic acid

benzene polycarboxylic acid

phenyl polycarboxylic ester plasticizer【助剂】

polycarboxylic

polycarboxylic acid vinyl ester