... 1um-50um length species:5', 10', 20', 30', 40', 60' excellent ability for resisting corruptionwidely used in industry field especailly in plating ... about 1um-50um length species:5', 10', 20', 30', 40', 60'Inside diameter: 28mm, outside diameter:63mm, 68.5mm, 117mm polypropylene ...