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process for the manufacture of for application in the civil engineering bedekkingsmateriaal suitable jobs, as well as the application in civil engineering.
process for the manufacture of for application in the civil engineering bedekkingsmateriaal suitable jobs, as well as the application in civil engineering.
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机译:用于土木工程的材料的合适工作的制造过程,以及在土木工程中的应用。
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摘要
A method for the manufacture of wide sheets of water impermeable coating material useful in hydraulic engineering which comprises passing carrier sheet having a width in excess of 4 meters through a molten petroleum bitumen coating composition, coating said carrier sheet on both sides with said coating composition and placing the resultant coated sheet as soon as possible onto a conveyor belt while inserting between said coated sheet and said conveyor belt a surfacing material comprising one or more paper strips and a strip of plastic film easily removed from the coated carrier sheet after cooling in a manner such that the strip of plastic film forms a lateral boundary of the surfacing material.
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