as the water supply dedicated equipment, the marine water supply bolt has the same function as the outdoor fire hydrant water supply equipment, has the anti-collision, antifreeze, with the opening labor-saving device. the product is produced and developed by shanghai mark electrical technology company. the technology conforms to relevant fire control the standard is tested by the national fire equipment quality supervision and inspection center. products can also be used in various types of oil chemical enterprises, oil fields, port terminals and other key fire units such as irrigation areas, systems, pipelines and other key parts, especially applicable to the cold northern areas of the fire industry; also applicable to municipal or garden,on the fire pipeline of environmental protection units, the apply range is wide.
