gravity galvanized stainless steel covneyor roller Specification: 1. tube material : galvanized steel, stainless steel, aluminum alloy 2. roller diameter : 38mm, 47.6mm 50mm, 60mm 3. bearing type: plastic bearing house, precision bearing 4. loading capability: mid-duty Features: 1. low noise, moistureproof, good looks 2. durable, good looks 3. can be used in various conveyors 4. high quality ...