Material:PU color: according to customers' requirement Size: standard or no-standard PU dust wiper seal Detailed dust wiper seal information Item name PU dust seal Characteristics Good physical and chemical properties.Hardness 20 to 90 shore A or as your request.Materials Comply with ROHS, NBR, Silicone (VMQ), EPDM, Viton, etc. Color Black, transparent, green, red, yellow, grey, purple, pink or ...