工業電子丙級術科2-3電路板的焊接.wmv - YouTube
工業電子丙級術科2-4機台配線組裝.wmv - Duration: 12:59. by MsChenlung 9,725 views 12:59 Play next Play now 組焊18650 - Duration: 11:45. by ching-i liang 57,673 views 11:45 Play next Play now 960928焊接練習 - Duration: 2:56. by 陳小阿中 25,568 views...