Electrical insulation products need to have both stray current blocking capability and over-voltage discharge adaptability, with more stringent requirements on explosion-proof and anti-impact performance, applicable scenarios include the ends of insulated joints, grounding systems in valve chambers, high incidence areas of lightning strikes and areas of dense power stray currents. The core of demand centers around cathodic protection effectiveness, safety protection, adaptability to working conditions and compliance durability, and there are significant differences in product performance and material selection requirements in different scenarios. Ensure the stable operation of pipelines and natural gas facilities throughout their life cycle.