Changzhou instar electronics co., LTD is one of the world first-class miniature acoustic device manufacturers, with independent mold manufacturing, research and development, the production ability of spare parts. Through to the raw materials and a full set of effective design and quality control of the end product, Changzhou instar electronics co., LTD. Can in the shortest time with competitive prices to provide customers the highest quality of patch buzzerSincerely welcome you to inquire.Changzhou instra electronics co., ItdTele:0519-88522151?88795898 Fax:0519-88520258 Website:www.czinstar.com