Well Control Professional Tube BOP Control Line ——GNG High-pressure Fire-resistant and Heat-insulation Hose Assembly Patent No.:ZL 92 104811.4 1、Scope of application: The hose for well control-GNG high-pressure, fire-resistant and heat-insulation hose assembly is mainly used for the hydraulic control of the BOP for drilling and for hydraulic transmission at high-temperature and flammable places in the […]