U, V, H Groove Window and Door Plastic Nylon Bearing Wheel Roller

U, V, H Groove Window and Door Plastic Nylon Bearing Wheel Roller. Adjustable Roller Height: The height of the roller is adjustable for versatile application. Customizable Size and Color: Size and color can be customized according to specific requirements. 2-Year Warranty Coverage: Comprehensive 2-year warranty provided for all mechanical parts. ISO and RoHS Certified: Products meet international safety and environmental standards. OEM and ODM Services: We produce based on customer samples, drawings, or technical requirements. High Production Capacity: Annual production capacity reaches 120 million sets with advanced equipment. Global Export Experience: Exporting to over 70 countries including USA, Canada, and European nations. 25 Years Industry Expertise: Over two decades of specialized experience in manufacturing pulleys and bearings.