实验电阻炉温度控制器
Temperature controller for laboratory resistance furnaces
Temperature controller for laboratory resistance furnaces
Temperature control cabinet for industrial resistance furnace
Fiber reinforced unsaturated polyester powder moulding compounds(UP-PMC) for electrical purposes
Fiber reinforced epoxy powder moulding compounds(EP-PMC) for electrical purposes
Specification for hydraulic lifting equipment in power construetion
Discharge lamps(excluding fluorescent lamps)-Safety specifications
Lamp controlgear-Part 2 : Particular requirements for starting devices (other than glow starters)
Lamp controlgear-Part 3:Particular requirements ford, c. or a.c, supplied electronie step-down convertors for filament lamps
Lamp controlgear-Part 4:Particular requirements fora.c,supplied electronic ballasts for fluorescent lamps
Lamp controlgear-Part 5: Particular requirements for d. c. suppliedelectronic ballasts for general lighting