| http://www.w3.org/ns/prov#value | - By maintaining a continuous flow of heated bituminous material through the spray bar and spray valve and nozzle assemblies, the spraying apparatus including the spray valve and nozzle assemblies, the spraying apparatus including the spray valve and nozzle assembly will always be at a high enough temperature to heat the material passing through the assembly and will prevent the congealing of bitumi
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