Fujian Nan'an City Guangwei Fire-Fighting Scie-Tech Co., Ltd. is China's largest production base of the fire equipment, professional production of a variety of CCCF certified fire sprinkler heads, wet alarm valves, deluge valves, pre-alarm valves, flow indicators, signal valves, signal butterfly valves, end water-test equipment, fire alarm buttons, fire self-volume disks, decorative plates, collector covers, decompression plates, blast wave valves, high-pressure gas pipes, and soft seal gate ...