... , grout, sediment, coal injection truck, bulk cement truck, sandblast, big inch grout hose, white powder and dredging.Blasting materialsQuartz sand, steel ... :the usual size is 2 ~16 inchwork pressure:15 bar~40 bar(1.5Mpa~4.0Mpa)Abrasion:DIN 53516 25mm3~165mm3Note: 1 ... ,4,5,6,7,8,10,12,18 ect. 2 inch concrete pump Hose