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NF C79-611-1980 Industrial Electrical Heating nPractical guide of calculation of an industrial furnace electrically heated by resistances《工业电热由电阻电热计算工业炉的实用指南》.pdf 26

NF C79-611-1980 Industrial Electrical Heating nPractical guide of calculation of an industrial furnace electrically heated by resistances《工业电热由电阻电热计算工业炉的实用指南》.pdfNF C79-611-1980 Industrial Electrical Heating nPractical guide of calculation of an industrial furnace electrically heated by resistances《工业电热由电阻电热计算工业炉的实用指南》.pdf

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NF C79-610-1979 Provisional Requirements nIndustrial Electrical Heating nElectrical moulded resistances for industrial furnaces《临时要求工业电加热工业炉用模制电阻》.pdf 16

NF C79-610-1979 Provisional Requirements nIndustrial Electrical Heating nElectrical moulded resistances for industrial furnaces《临时要求工业电加热工业炉用模制电阻》.pdfNF C79-610-1979 Provisional Requirements nIndustrial Electrical Heating nElectrical moulded resistances for industrial furnaces《临时要求工业电加热工业炉用模制电阻》.pdf

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NF C68-100-2007 Conduit systems for cable management Outside diameters of conduits for electrical installations and threads for conduits and fittings 《电缆管理用导管系统 电气装置用导管的外径和导管及配件的螺纹.pdf 18

NF C68-100-2007 Conduit systems for cable management Outside diameters of conduits for electrical installations and threads for conduits and fittings 《电缆管理用导管系统 电气装置用导管的外径和导管及配件的螺纹.pdfNF C68-100-2007 Conduit systems for cable management Outside diameters of conduits for electrical installations and threads for conduits and fittings 《电缆管理用导管系统 电气装置用导管的外径和导管及配件的螺纹.pdf

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NF C68-100-1995 Conduits for electrical purposes Outside diameters of conduits for electrical installations and threads for conduits and fittings 《电气用导管 电气设备用导管外径和导管及配件螺纹》.pdf 18

NF C68-100-1995 Conduits for electrical purposes Outside diameters of conduits for electrical installations and threads for conduits and fittings 《电气用导管 电气设备用导管外径和导管及配件螺纹》.pdfNF C68-100-1995 Conduits for electrical purposes Outside diameters of conduits for electrical installations and threads for conduits and fittings 《电气用导管 电气设备用导管外径和导管及配件螺纹》.pdf

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NF C68-091-1975 Fittings for insulated wirings wood baseboards mouldings and frames Requirements and dimensions《绝缘线路木制底板、模具和框架用配件 要求和尺寸》.pdf 15

NF C68-091-1975 Fittings for insulated wirings wood baseboards mouldings and frames Requirements and dimensions《绝缘线路木制底板、模具和框架用配件 要求和尺寸》.pdfNF C68-091-1975 Fittings for insulated wirings wood baseboards mouldings and frames Requirements and dimensions《绝缘线路木制底板、模具和框架用配件 要求和尺寸》.pdf

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NF C67-250-1981 Supports for overhead lines Prestressed concrete poles Specification 《架空线用支架 预应力混凝土电杆 规范》.pdf 29

NF C67-250-1981 Supports for overhead lines Prestressed concrete poles Specification 《架空线用支架 预应力混凝土电杆 规范》.pdfNF C67-250-1981 Supports for overhead lines Prestressed concrete poles Specification 《架空线用支架 预应力混凝土电杆 规范》.pdf

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NF C67-220-2005 Supports for overhead lines - Concrete poles of classes D and E 《架空线路支架 D 级和 E 级水泥电杆》.pdf 24

NF C67-220-2005 Supports for overhead lines - Concrete poles of classes D and E 《架空线路支架 D 级和 E 级水泥电杆》.pdfNF C67-220-2005 Supports for overhead lines - Concrete poles of classes D and E 《架空线路支架 D 级和 E 级水泥电杆》.pdf

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NF C52-112-3-1995 Three-phase oil immersed distribution transformers 50 hz from 50 to 2 500 kv with highest voltage for equipment not exceeding 36 kv Part 3 supplementary requiremr e.pdf 9

NF C52-112-3-1995 Three-phase oil immersed distribution transformers 50 hz from 50 to 2 500 kv with highest voltage for equipment not exceeding 36 kv Part 3 supplementary requiremr e.pdfNF C52-112-3-1995 Three-phase oil immersed distribution transformers 50 hz from 50 to 2 500 kv with highest voltage for equipment not exceeding 36 kv Part 3 supplementary requiremr e.pdf

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NF C52-112-2-3-2007 Three-phase oil-immersed distribution transformers 50 Hz from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV - Part 2-3 distributioolt.pdf 10

NF C52-112-2-3-2007 Three-phase oil-immersed distribution transformers 50 Hz from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV - Part 2-3 distributioolt.pdfNF C52-112-2-3-2007 Three-phase oil-immersed distribution transformers 50 Hz from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV - Part 2-3 distributioolt.pdf

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NF C52-112-2-2-2007 Three-phase oil-immersed distribution transformers 50 Hz from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV - Part 2-2 distributioolt.pdf 11

NF C52-112-2-2-2007 Three-phase oil-immersed distribution transformers 50 Hz from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV - Part 2-2 distributioolt.pdfNF C52-112-2-2-2007 Three-phase oil-immersed distribution transformers 50 Hz from 50 kVA to 2 500 kVA with highest voltage for equipment not exceeding 36 kV - Part 2-2 distributioolt.pdf

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