Heavy-Duty Steel 4 Wheel Gate Wheels, Folding Door Hanging Door Rollers, Sliding Door Rollers

Heavy-Duty Steel 4 Wheel Gate Wheels, Folding Door Hanging Door Rollers, Sliding Door Rollers. Customizable Dimensions: Wheel diameter, height, and spacing available in multiple sizes or fully customized. Durable Zinc Plating: Galvanized surface treatment ensures high durability and wear resistance. Smooth Sliding Performance: Precision bearing steel balls provide smooth sliding and stable structure. Wide Application Range: Suitable for indoor, industrial, farm, hospital, and residential sliding doors. Comprehensive Certifications: Product certified with CE, ISO, RoHS, and REACH standards for global safety. OEM and ODM Services: Full customization support for design, color, logo, and packaging. 20+ Years Experience: Established in 2002 with over 20 years of industry leadership and innovation. High Production Capacity: 5,000 sqm factory with annual output of 2 million pulley sets.