... max length is 80M.. 3.widely used in shipbuilding.. 4.factory direct sale.. 5.can be customized.. Applications1. Useful in various ... sand blast rubber hose; rubber hose for waterway desilting, cementing pump truck, concrete, grout, sediment, coal injection truck, bulk cement truck ... ,4,5,6,7,8,10,12,18 ect. Concrete pump rubber hose