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Ecological requirements for estate properties. Improving energy efficiency and environmental safety of ventilation and air conditioning systems
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Galvanized wire nails for asbestos cement roofing. Specifications
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Broaches with diameter 12 and 14 mm for slitting holes with involute profile and centering at outside diameter with module 1 mm double driven. Construction and dimensions
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Non-tin bronze. Methods for the determination of manganese
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