Electrical apparatus for the detection and measurement of flammable gases. Part 3. Performance requirements for group I apparatus indicating a volume fraction up to 100% methane in air
Pattern plates with changeable wooden inserts for moulding box having inside dimensions 2600x1600 mm for moulding foundry machines with turn of half mould without squeezing. Design and dimensions
Automobile roads of general use. Flexible pavement indexes of deformation of structural layers of loose materials and soils. Technical requirements and methods of determination
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