Major Wood Preservatives used are either water based( Chromated Copper Arsenate(CCA), Chomated Copper Boric acid(CCB), Zinc Arsenate(CZA), Borax Boric Acid(BBA)etc.), Oil-based (Coal-Tar Creosotes and most commonly used Copper based Naphthenates etc.) or Naturally occuring (Linseed Oil, Tung oil, Tannins etc.) Thankyou for such a great session o7
@inspiringminds2441 Жыл бұрын
all correct
@Pushpakvlog Жыл бұрын
Nice session mam plzz continue it as till exam thanks 🙏
@nighatmaqbool4023 Жыл бұрын
Nice session mam❤..plzzz continue it as till exams
@vikashsatyarthi8524 Жыл бұрын
Today is best class gone due to explaining all MCQ explanations means a/c to questions option is correct or not correct 💯