Ultra-high pressure hose: Today, as industrial equipment continues to pursue high efficiency and high load, ultra-high pressure hoses have become the "steel artery" in the field of power transmission. This type of hose is designed to cope with extreme pressure environments above 40MPa. Its bursting pressure can reach 4 times the working pressure, and it can perfectly adapt to the needs of heavy machinery such as shield machine propulsion systems and hydraulic stamping equipment. The use of a six-layer high-carbon steel wire winding structure combined with special synthetic rubber not only achieves an exponential improvement in pressure resistance, but also extends the pulse fatigue life to more than 2 million times through dynamic stress dispersion technology. In cutting-edge scenarios such as deep-sea oil and gas exploration and spacecraft hydraulic testing, ultra-high pressure hoses have redefined the baseline for industrial safety transmission with a leakage rate control standard of 0.01%. Resin hose: The rapid aging problem of traditional rubber hoses in strong acid and alkali media has led to a revolutionary breakthrough in resin hoses. Polymer materials represented by polyurethane and polytetrafluoroethylene (PTFE) form a molecular-level protective barrier through a three-layer co-extrusion process. Experiments have proved that under the continuous flushing of 98% concentrated sulfuric acid, the service life of PTFE resin hose is 15 times that of ordinary rubber hose, and its inner wall smoothness reaches Ra≤0.8μm, which effectively reduces the residual medium. Even more groundbreaking is the research and development of conductive resin hose. Through carbon nanotube composite technology, the static electricity extraction efficiency is increased to 99.9%, which completely solves the transmission safety hazards of flammable and explosive scenes in the chemical industry, and becomes the only choice for acid and alkali storage and transportation and electroplating production lines. Dual technology integration: The collaborative innovation of ultra-high voltage and resin technology is creating unprecedented application value. In the field of lithium-ion new energy, the composite hose we developed has both 80MPa pressure resistance and electrolyte corrosion resistance, and has been successfully applied to the hydraulic-chemical dual-medium transmission system of the pole piece roller press; in the sewage treatment equipment of the environmental protection industry, the ultra-wear-resistant resin hose is matched with a 300-mesh steel wire braided layer, which can withstand the pulsation impact of the sludge pump and resist the erosion of hydrogen sulfide gas. This cross-border technology integration has been extended to food-grade scenarios - the FDA-certified white ultra-high pressure hose can withstand 120°C high-temperature steam cleaning and meet the hygiene standards of 10MPa-level filling equipment. Scientific selection guide: Choosing ultra-high pressure or resin hoses requires a three-dimensional evaluation system: the pressure dimension requires the calculation of peak pressure × safety factor (recommended 1.5), the medium dimension requires the detection of pH value, oxidizability and particulate matter content, and the environmental dimension requires the comprehensive temperature, bending frequency and external wear risk. For example, the mining machinery hydraulic system recommends the use of ultra-high pressure hoses with Kevlar tensile layers, while the etching liquid transportation in the semiconductor industry should give priority to the double protection structure of PTFE lining + conductive resin.