Thank you very much for this valuable information.

Clear and nice explanation... Thank you

Thank you for this clear explanation.

Hello Sir Very nice and very comprehensive video Good luck Please continue

Thankyou Sir for taking such efforts for us. Your Videos are Great and Very Helpful. May God Bless you with Good Health and Prosperity.

Wonderful explanation sir. But a general warning in almost all international standards states that manufacturer should not recommend backseat sealing as a reliable means for adding or replacing packing while the valve is under pressure.

Thanku sir. Very helpful. Keep it up..❤

Thank you for the Helpful video sir

Very well present it. Thank you .

Good video , now i know what are parts of trim material

Excellent

Thanks a lot sir ..

Great 👍

V nice sir thanks

nice content sir

Good video sir

Thank you

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