South America Hot sales Heavy Duty Needle Bearing Double Nylon Pulley Wheel Zinc Alloy Housing Sliding Window Rollers High-quality zinc alloy inner frame with nylon housing sliding window rollers designed for smooth, quiet operation of aluminum sliding windows and doors. Product Attributes Attribute Value Material South America Hot sales Heavy Duty Needle Bearing Double Nylon Pulley Wheel Zinc Alloy Housing Sliding Window Rollers Load capacity 100kg Wheel Color Any color
