liên hệ với đá quý mềm - các câu hỏi về dây chuyền sản xuất sợi và thiết bị

Soft Gem We are committed to the integration and innovation of the overall solution for the fiber material production plant, including the whole project planning, process package and engineering design, complete equipment manufacturing, digital information integration, terminal product performance assurance, and full life cycle services. We have an experienced technical research and development team with expertise