PTC RELAY

[@thenoobgamershubhajit6620]

Thank you so much sir. How easily you though us. It's grateful for a student.❤️❤️❤️

[@supritibanerjee6057]

Sir topic ta puro clear hoe gelo...thanku you....

[@anubratakarmakar7393]

Khub valo vabe bojhalen sir ❤️

[@swarupmishra6918]

Khub sundor sir.

[@sandipbauriu2205]

Vapour compression refrigeration cycle a refrigerant kom thakle low pressure low temperature liquit line a ice dekha ja keno