Name: 28" NBR Rice Mill Rubber Roller On Iron Drums 2.Material: NBR 3.Color: White, red 4.Size ... General Information1.Name: 28" NBR Rice Mill Rubber Roller On Iron Drums 2.Material: NBR3.Color: white and red4.Size: 28 ... place, away from acid, alkali, salt, oil and organic solvent.D. Keep the room temperature 10-30oC, comparative moisture 50-80oC ... : one year. 28" NBR Rice Mill Rubber Roller On Iron Drums