OSI SOFTWARE GmbH

Nanjing Longtan Fine Chemical Co., Ltd. is located in the beautiful eastern suburbs of Nanjing - Longtan Street Office in Qixia District. It is adjacent to the Shanghai Nanjing Railway and National Highway 312 to the south, and the Longtan Port Area

Gansu Lixinyuan Microsilica Powder Co., Ltd. is a technology-based enterprise specializing in the research and development of high-quality microsilica powder and related additives, mainly for export. It has also established multiple production and pr