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PDF Standards BS 2989:1991

Specification for continuously hot-dip zinc coated and iron-zinc alloy coated steel of structural qualities: wide strip, sheet/plate and slit wide strip
standard by BSI Group, 08/30/1991

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PDF Standards BS 3680-9B:1981

Methods of measurement of liquid flow in open channels. Water level instruments-Float-operated water level recorders (mechanical and electromechanical)
standard by BSI Group, 12/31/1981

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