Wood work technician
34:22
Junior instructor wood work technician
3:47
कौन सी वेल्डिंग रॉड के लिए कितना करेंट होता है / How Much Current For Which Welding Rod
58:22
Junior instructor wood work technician
25:51
Junior instructor pump operator
1:14:27
Lift and escalator
26:36
Junior instructor wood work technician
34:19
Junior instructor sheet metal worker
23:45