(PVG - 5) බර යෙදු පරීක්ෂණ නළයක් භාවිතයෙන් ද්‍රවයක සාපේක්ෂ ඝනත්වය සෙවීම I AMITH PUSSELLA

[@Sxthil]

Sirge Practical wala kiyala dunna theory point mata ඉස්කෝලේ practical eka karanakota eka mara sahalluwak una sir.....❤❤❤

[@paramee4662]

Thank you sir

[@r_e_s_a3699]

thanks sir

[@lakshanbuddika5856]

Sir pactical tika free dena eka godak watinawa sirr

[@mohammedaakif7318]

❤

[@GayaniSrijika]

🤗🙏

[@duleekadilshani4312]

Thank you sir

[@sanidupalliyaguru7559]

❤

[@BCGunaweerage]

❤

[@bpc_al_]

Thanks sir