[待更新] Hai Gen Enterprise Yu- Kuang Chem. Ind. Corp. YKC Stationery developed the first resin mechanical pencil lead in Taiwan. In order to differentiate from Japanese made hi- polymer super lead, we named our pencil lead: Ex- Polymer pencil lead, for its ...xic raw materials. - Complete Quality Assurance. - Non- toxic raw materials. - Conform to EN71 and ...
