Yuguan business and trading company is the branch of xingyuan teaching instrument and equipment company as his sales department to deal with his trading business.xingyuan company is located in the coastof the Bohai sea,it is the largest modern company of reseach,production and selling sport equipment in the North China.After years of development,our series products are accepted as complete verieties,high quality,beautiful appearance and reasonable price by the national and oversea client.