Specification for flanged steel outside-screw-and yoke wedge gate valves for the petroleum industry
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Specification for flanged and butt-welding end steel outside-screw-and yoke wedge gate valves for the petroleum industry
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Mixing valves-Specification for thermostatic mixing valves
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Methods for the sampling and analysis of rennet casein
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Methods for the sampling and analysis of rennet casein
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Mastic asphalt for damp proof courses an tanking natural rock containing 6 to 10 per cent bitumenj
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Mastic asphalt for tanking and damp proof (natural rock asphalt aggregate)
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Domestic steel lay-on mattresses (spiral spring type)
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