ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
Well explained. Thank you, Prof.
Very clear and simple explanation. Thank you very much
Well explained. Thank you
Thanks for this. ❤
thank you sir, nicely explained. i have one doubt sir, can you tell the three types of optical connections in borescope?
Hi i would like to come over there and do my ndt course so i need your help
Well explained. Thank you, Prof.
Very clear and simple explanation. Thank you very much
Well explained. Thank you
Thanks for this. ❤
thank you sir, nicely explained. i have one doubt sir, can you tell the three types of optical connections in borescope?
Hi i would like to come over there and do my ndt course so i need your help