First: Uses: Suitable for oil drilling. Flexible hoses for the flexible connection between the top of the drilling riser and the vertically-movable faucet in the mud delivery system. Also suitable for adjusting the installation error between the drilling pump line and the riser. Connect and isolate from vibrations. It is suitable for large-scale transportation of water-based or oil-based mud pumped from rotary drilling equipment with a minimum aniline point of 66 ° C under high pressure conditions. It can prevent the erosion of hydrogen sulfide. It can transport water, oil, mud, and other high pressures in underground oilfield operations medium. Two: Structure: It consists of inner rubber layer or stainless steel armored inner tube. Carbon fiber reinforced layer. Medium rubber layer. Steel wire reinforced layer (steel chain line reinforced layer). Carbon fiber outer rubber layer. Three: The product is divided into steel wire reinforced. Steel chain reinforced. Four: Connector type: In addition to the API Spec 5B line pipe and oil pipe thread, you can also provide flange and flange connection, can also be manufactured according to user requirements Five: Implementation standards: API spec 7K. SY / T 5469-92 Product description: 1. Structure: inner rubber layer, inner rubber protective layer, middle rubber layer, steel wire winding layer and outer rubber layer. 2. Uses: Wire-wound drilling hoses are used in oilfield cementing, workover and petroleum geological exploration, small drilling rigs and hydraulic coal mining, transportation of mud and room temperature water and other fluid media.