• Advantages: Excellent electrical insulation, corrosion-resistant, flexible, durable. 

• Properties: High dielectric strength, smooth inner wall, UV-resistant, crack-resistant. 

• Application: Underground power cable, LV/MV cable protection, municipal power engineering. 

• Description: Used for direct burial installation to protect cables from mechanical damage and moisture.

• Advantages: Permanent solid lubricant inner wall, low friction, high tensile strength. 

• Properties: Impact-resistant, compression-resistant, waterproof, anti-aging, corrosion-proof. 

• Application: Optical cable protection, communication cable duct, highway, railway, telecom projects. 

• Description: Co-extruded silicon core layer, ideal for long-distance cable blowing installation.

• Advantages: Light weight, flexible, corrosion-resistant, anti-sedimentation, no scaling. 

• Properties: Smooth inner wall, good ring stiffness, impact-resistant, easy installation. 

• Application: Building drainage, rainwater discharge, residential sewerage, farmland drainage. 

• Description: Suitable for non-pressure gravity drainage systems, widely used in construction and municipal projects.

• Advantages: Non-toxic, hygienic, corrosion-resistant, high toughness, leak-proof, long service life. 

• Properties: Excellent pressure resistance, smooth inner wall, low flow resistance, good low-temperature impact resistance, heat-fusion jointed. 

• Application: Municipal water supply, potable water transmission, residential water supply, industrial water, garden irrigation. 

• Description: Made of high-density polyethylene resin, compliant with drinking water standards, stable performance, service life up to 50+ years.