EU Trademark Classification EU01 Chemicals Polyvinyl chloride resins Class 01 Polyvinyl chloride resins 4256 聚氯乙烯树脂[未加工] Chinese 聚氯乙烯树脂[未加工] English Polyvinyl chloride resins [unprocessed] Site ref. 4256 Class 01 Included in Harmonised Database (HDB) Name qualifier unprocessed