| 1. | Production white , ferrous sulfate , biological contaminants and other chemical products ( excluding hazardous chemicals , yi - drug ) , the development of biological engineering research , chemical equipment manufacture , installation , chemical engineering ( with quality permits to operate ) , technical advice 生产钛白粉、硫酸亚铁、有机酸及其他生物化工产品(不含化学危险品、易制毒品) ,生物工程科研开发,化工设备制造、安装,化工工程设计(凭资质证经营) 、技术咨询。 |