Sir I was working in steel plant in dust control system development and we were trying to control the dust and we spending the lot of effects and amount but we couldn't get the that much our goal and sir, I have so many duts. I want your contact number
Great work Professor! thank you
Great lecture-thanks for posting this video!
So precious video.
GREAT lectuture... thank tou sir
Great
Excellent lecture
thank you sir
Sir
I was working in steel plant in dust control system development and we were trying to control the dust and we spending the lot of effects and amount but we couldn't get the that much our goal and sir, I have so many duts. I want your contact number
Ap plzz 9th ki genral science ka lecture da diya kare
not satisfy
Tum samajna hi nahi chahta
you may need a vibrator