Phenolic paper laminated tube is formed by hot rolling,baking electrical insulating rolling paper or insulating craft impregnated with phenolic resin under heat and pressure. The Insulation tube can be processed into all kinds of insulation parts, The products are widely used transformers, electric motors, cabinets, control boxes, electric switches, household appliances, railway, automobile, computer and medical appliance,etc.　　
　　 HP2065 tube: With mechanical and electrical application, moisture-resistance, primarily intended for mechanical and low electrical applications, suitable as structural parts of mechanical and electrical equipments.
　　HP2066 tube: With good electrical applications and high electrical application in oil, primarily intended for high electrical applications, suitable as structural parts of high electrical equipments.
　　HP2067 tube: Similar to HP2066, good moisture-resistance, primarily intended for mechanical and electrical applications, suitable for structural parts of electrical equipments in high humidity conditions.

　　Length: 1000～1500mm
　　Inner Diameter: 10 ～500mm
　　Wall thickness: ≥2mm