... 4.factory direct sale.. 5.can be customized.. Concrete pump rubber hose Applications1. Useful in various kinds of sand ... sand blast rubber hose; rubber hose for waterway desilting, cementing pump truck, concrete, grout, sediment, coal injection truck, bulk ... sediment, ball bearing, cement powder, cement concrete, dry powder mortar, coal fines, carbon powder, and mineral powder.Technology parameters ...