国外标准列表
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[国外标准] BS EN 1568-1-2000 Fire extinguishing media. Foam concentrates. Specification for medium expansion fo
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[国外标准] BS EN 1567-2000 Building valves. Water pressure reducing valves and combination water reducing valve
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[国外标准] BS EN 1559-3-1997 Founding Technical conditions of delivery Part 3. Additional requirements for iron
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[国外标准] BS EN 1550-1997 Machine-tools safety Safety requirements for the design and construction of work hol