Namaskar doston, video Late upload hui is baat ke liye sorry...!!! Is video mein maine Glass ke production ke baare mein bataya hu aur uske types ke baare mein thoda discuss kiya hu...!!! thanku thanku so much...!!! Share, Support, Subscribe!!! Subscribe: https://www.youtube.com/channel/UCh7qsTmcCu5dmuN3TpgoZ4w?view_as=subscriber?sub_confirmation=1 Youtube: https://www.youtube.com/channel/UCh7qsTmcCu5dmuN3TpgoZ4w?view_as=subscriber Twitter: https://twitter.com/ChemicalVidya Facebook: https://www.facebook.com/Chemical-Vidya-1179540072156464/ Instagram: https://www.instagram.com/chemical_vidya/ Google Plus: https://plus.google.com/u/0/115175712011781460183 Website: www.chemicalvidya.com