ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
thank u for excellent lecture
madam, make a lesson on directional control valves (DCV) thank you madam
Mam it's good but please trying to teach in board then so many students interested about your videod
thank u for excellent lecture
madam, make a lesson on directional control valves (DCV)
thank you madam
Mam it's good but please trying to teach in board then so many students interested about your videod