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HD 87-1977 Testing and Calibration of Ultrasonic Therapeutic Equipment《超声波治疗仪的试验和校准》.pdf 2

HD 87-1977 Testing and Calibration of Ultrasonic Therapeutic Equipment《超声波治疗仪的试验和校准》.pdfHD 87-1977 Testing and Calibration of Ultrasonic Therapeutic Equipment《超声波治疗仪的试验和校准》.pdf

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15人阅读
HD 77-1987 Lighting Fittings for Incandescent Lamps for Domestic and Similar Purposes《家用和类似用途的白炽灯照明配件》.pdf 2

HD 77-1987 Lighting Fittings for Incandescent Lamps for Domestic and Similar Purposes《家用和类似用途的白炽灯照明配件》.pdfHD 77-1987 Lighting Fittings for Incandescent Lamps for Domestic and Similar Purposes《家用和类似用途的白炽灯照明配件》.pdf

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20人阅读
HD 65-1982 Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety《具有可互换性和安全性控制的带量规的灯头和灯座》.pdf 4

HD 65-1982 Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety《具有可互换性和安全性控制的带量规的灯头和灯座》.pdfHD 65-1982 Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety《具有可互换性和安全性控制的带量规的灯头和灯座》.pdf

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16人阅读
HD 65 3-1987 Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety Part 3 Gauges《具有可互换性和安全性控制的带量规的灯头和灯座 第3部分 量规》.pdf 2

HD 65 3-1987 Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety Part 3 Gauges《具有可互换性和安全性控制的带量规的灯头和灯座 第3部分 量规》.pdfHD 65 3-1987 Lamp Caps and Holders Together with Gauges for the Control of Interchangeability and Safety Part 3 Gauges《具有可互换性和安全性控制的带量规的灯头和灯座 第3部分 量规》.pdf

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15人阅读
HD 433-1983 Safety Requirements for Arc Welding Equipment Coupling Devices for Welding Cables《弧焊设备安全要求 焊接电缆耦合装置》.pdf 10

HD 433-1983 Safety Requirements for Arc Welding Equipment Coupling Devices for Welding Cables《弧焊设备安全要求 焊接电缆耦合装置》.pdfHD 433-1983 Safety Requirements for Arc Welding Equipment Coupling Devices for Welding Cables《弧焊设备安全要求 焊接电缆耦合装置》.pdf

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5人阅读
HD 432-1983 Definitions of Camac Terms Used in IEC Publications《IEC出版物中使用的CAMAC术语的定义》.pdf 2

HD 432-1983 Definitions of Camac Terms Used in IEC Publications《IEC出版物中使用的CAMAC术语的定义》.pdfHD 432-1983 Definitions of Camac Terms Used in IEC Publications《IEC出版物中使用的CAMAC术语的定义》.pdf

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5人阅读
HD 429 S1-1983 Methods of Test for Volume Resistivity and Surface Resistivity of Solid Electrical Insulating Materials《固体电绝缘材料体积电阻率和表面电阻率的试验方法[ CENELEC EN 62631.pdf 2

HD 429 S1-1983 Methods of Test for Volume Resistivity and Surface Resistivity of Solid Electrical Insulating Materials《固体电绝缘材料体积电阻率和表面电阻率的试验方法[ CENELEC EN 62631.pdfHD 429 S1-1983 Methods of Test for Volume Resistivity and Surface Resistivity of Solid Electrical Insulating Materials《固体电绝缘材料体积电阻率和表面电阻率的试验方法[ CENELEC EN 62631.pdf

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2人阅读
HD 428-1983 Three-Phase Oil-Immersed Public Distribution Transformers 50 Hz from 50 to 2500 kVA with Highest Voltage for Equipment Not Exceeding 24 kV《最高压不超过24 .pdf 15

HD 428-1983 Three-Phase Oil-Immersed Public Distribution Transformers 50 Hz from 50 to 2500 kVA with Highest Voltage for Equipment Not Exceeding 24 kV《最高压不超过24 .pdfHD 428-1983 Three-Phase Oil-Immersed Public Distribution Transformers 50 Hz from 50 to 2500 kVA with Highest Voltage for Equipment Not Exceeding 24 kV《最高压不超过24 .pdf

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1人阅读
HD 428 A1-1990 AMD 1 Three-Phase Oil-Immersed Public Distribution Transformers 50 Hz from 50 to 2500 kVA with Highest Voltage for Equipment Not Exceeding 24 kV《.pdf 6

HD 428 A1-1990 AMD 1 Three-Phase Oil-Immersed Public Distribution Transformers 50 Hz from 50 to 2500 kVA with Highest Voltage for Equipment Not Exceeding 24 kV《.pdfHD 428 A1-1990 AMD 1 Three-Phase Oil-Immersed Public Distribution Transformers 50 Hz from 50 to 2500 kVA with Highest Voltage for Equipment Not Exceeding 24 kV《.pdf

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4人阅读
HD 266-1975 Particular Specification for Appliances for Skin or Hair Treatment《皮肤或头发护理器具的特别规格》.pdf 6

HD 266-1975 Particular Specification for Appliances for Skin or Hair Treatment《皮肤或头发护理器具的特别规格》.pdfHD 266-1975 Particular Specification for Appliances for Skin or Hair Treatment《皮肤或头发护理器具的特别规格》.pdf

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