Huahai Marine Signals Manufacturing. Co.,Ltd.established in 2009, is the largest manufacturer specializing in marine distress signals in China.It was merged into four marine pyrotechnics factories,namely Haimen Huahai Marine Safety Equipment Co.,Ltd,Dongtai Welfare Fireworks Factory,Jianghai Shipping Equipment Co.,Ltd and Qidong Traffic Signal Bar Factory.It is enjoying high reputation from all over the world for its large and full scale of products, high quality, best price and ...