Cixi Tianyuan Junma Electronic Manufacturer. is a specialized company in tegrating the research, development and manufacture of electronic ,Ningbo Seldorauk electric co.,ltd is matched with the right to self-managed import and export trade,both are same owner. The company mainly produces and annunciator, door bell and so on electronic product .The products are distributed to every part of the world and favorably celebrate commend praise by the clients. Our products are exported to ...