CiXi HongChang Electronic Co.,Ltd.founded in 1990,we specialize in manufacturing sirens and acoustic components which are exported to worldwide markets. Located in CiXi city,350 kilometers from sanghai and 45 kilometers from NingBo ports,we enjoy convenient transportation and economic advantages.Meanwhile,our factory covers more than 4800 square meters.Total investment 2 million dollars,now we have 150 staffs. Having accumulated professional production experience for many years,we perform excellently in the line of sirens and constantly m...