GANTECH OPTO ELECTRONICS CO.,LTD Huaian Gantech Opto Electronics Limited is the first OPC Drum factory in China inveated by Taiwan Precies International Limited in April, 2002. But in April, 2013, Mr Qiwen Li bought 100% equity from Taiwan, became the new president of Gantech. We are a professional manufacturer with over 12 years' experiences on production of printing suppliers. Established in April, 2002, with the total investment of U. S. Dollar 9.65 million. We are specializing in developing and produccing new laser printer, digital copier, laser fax machine and organic photo conducer drum(abbreviation: OPC Drum)