Beijing Zhou Hai Tong Da International Trading Company (ZHTD) is a ministry of foreign trade of Beijing China East

Great Wall Musical Instrument Factory. ZHTD is responsible for Beijing China East Great Wall Musical Instrument

Factory with import and export related business. Beijing Zhou Hai Tong Da International Trading Company (ZHTD) is

an internationalization brand company which makes import, export and transports business for integration. And ZHTD

always cooperates with Beijing China East Great Wall Musical Instrument Factory for their external sales.