... .Material:SBR Natural rubber2.Size: 1/4", 5/16", 3/8",1/2",5/8",3/4",1"3.Color: Red, blue, black ... + reinforcing layer ( second reinforcing layer for1/2",5/8",3/4",1")8.outside bond layer; outside surface is mill finish, reinforcing ... sizeI.DO.Dline layerW.PB.PStandard lengthnet weightmeasure-mentinchmmmm barbar m/roll kg/roll m3/roll1/461312060 100 18 0.0325 ...