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GB1489137A
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Additive for cement slurries and rinsing slurries for deep bores
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NL7504594A
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Additives for cement slurries and drilling fluids - comprising oxidised petroleum distn. residues
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DE2509330A1
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Asphalt floor covering material - by introducing hot granular mineral aggregate into mixer-adding cold, liquefying hard bitumen granules
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DE2506899A1
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PROCESS FOR COATING A PIPELINE LAYING IN THE GROUND WITH A THERMAL INSULATING AND CORROSION-PREVENTING COAT
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DE2239863A1
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DEVICE FOR FILLING MATERIALS THAT ARE FLOWABLE AT HIGH TEMPERATURE AND THAT FREEZE AT ROOM TEMPERATURE, PREFERABLY BITUMEN, IN PLASTIC SOCKETS
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DE2224419A1
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Sulphur casting machine - for prodn of blocks rfrom liquid /molten sulphur
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GB1377980A
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Manufacture of blocks from molten materials
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