Durable Features Low‑Noise Sliding Window Pulley Aluminum Double Roller Product Advantage: 1.Precision V-groove surface reduces friction and minimizes noise, ideal for home and office environments.2.Anodized aluminum alloy offers excellent corrosion resistance and long service life3.Supports height/eccentricity fine-tuning for easy installation and alignment4.Bearing type, wheel color (custom RAL/Pantone), and logo engraving available per buyer request5.In-house production
