BEIJING LEAD-TOP INTERNATIONAL FAIR CO., LTD.(LEAD-TOP) is the exclusive partner of Glassman events.a comprehensive consulting service company for Global Glass and Fenestration Industry. LEAD-TOP operates all the global international glass and fenestration exhibitions, and provides all-round and extended services for international glass and fenestration exhibition exhibitors and visitors. LEAD-TOP strives to become the best exhibition service provider for all Chinese glass and fenestration enterprises. Our service, your success!