1.Akran Abrasion<0.1. 2.The normal length is 40M 3.widely ... Technology parameterssize:all standard size:the usual size is 2 ~16 inchwork pressure:15 bar~40 bar(1.5Mpa~4 ... to be re-determined as the customer’s requirement. 2.Requirements for special working pressure, length, or colors ... 1-1/2,1-3/4,2,2-3/8,2-1/2,3,3-1/2,4,5,6,7,8,10,12,18 ... ect. 2 inch concrete ...