ข้อมูลทรัพยากร

เนื้อหาย่อ : CHAPTER 1 Dtacsosts OF TROUBLE Tating Techniques-Safety Precautions-Tools and Testing--Electrica Testing-Switch Cleaning and Replacement CHAPTER 2 PURTABLE ELECTRIC HEATERS Heater Repairs CHAPTER 3 ExscTRIc FANS Exhaust Fans-Multiple-Speed Fans CHAPTER 4 ExCTRIc KNIVES AND TOOTHBRUSHES Electric Knives-Electric Models-Cordless Models-Eleetric Tooth brushes CHAPTER 5 ELECTRIC HAIR DRERS Diagnosis of Troubles-Fans-Hoses and Fittings CHAPTER 6 ELECTRIC MASSAGE MACHINES