Rk ki die 4500 se 4800 ke karib production de deti h And ye video me full knowledge ke sath ye sir nhi bta paye h, kosis to aachi ki h but dusre se Li Hui knowledge hi share ki gyi h video me. Hmlog ka work hi same chij ka h to aache se pta h sare reason with practical knowledge because our daily work.🥰 Baki video dekh k aacha lga