济南正德科贸有限公司成立于1998年，主要致力于新技术，新型设环保设备的开发和应用和推广。目前主要致力于纯净水设备过滤，罐装包装等，另外又开发了新型的环保铅笔设备，利用废旧报纸再利用，保护了环境，适应了时代的潮流。目前正在申请国家食品添加剂固化法专利。

Jinan Zhengde Science and Commerce Co., Ltd. was established in 1998, mainly dedicated to the development and application of new technology, new equipment and the promotion of environmental protection equipment. At present, we are mainly committed to pure water equipment filtration, can packaging, etc. In addition, we have developed new types of environmentally friendly pencil equipment, using waste newspapers for reuse, protecting the environment and adapting to the trend of the times. At present, we are applying for the national patent of food additive curing method.