... ;2). Light weight, soft and elastic with long life span;3). Colorful, brilliant and beautiful;4). Non toxic, hi- ... CHARACTERS 1)strongand durable,resistance to abrasion,corrosion,chemicals and terrible weather2)soft surface,good flexibility,high burst ... conveying liquid materials in industry,agriculture irrigation,mines and civil engineering NORMAL SIZE SPECIFICATIONS SizeInner DiameterOuter DiameterW ...