Audio Device, Electronic Apparatus, auto parts, textile and garments, sundry goods. the main business of daya, whatever under our own management or as agent for other enterprises,includes importing/exporting various commodities and techniques,processing on materials, samples and spare parts supplied by customers and compensation trade, joint venture and cooperative management with foreigners as well as taking part in tenders of international projects. daya initiates style of work as strict management, pragmatic work, quality first and efficient engagement. and daya holds firmly the purpose of " quality is foundation, prestige the first, mutually benefit and sincerely cooperate with customers".