বেকেটাবেক্টেৰিঅ’ক্ল’ৰ’ফিল
বেকেলাইট (Assamese)
বেকেলাইট (Assamese)
1. Bakelite ( BAY-kə-lyte), formally polyoxybenzylmethyleneglycolanhydride, is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde. The first plastic... from wikipedia.org