HomeEngineeringBristles of tooth brushes are made of 4746. Bristles of tooth brushes are made ofBy Admin / September 7, 2025 nylon-6 nylon-66 polystyrene PVC ✅ The correct answer is option B.
1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm². Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin
2. Transformer cores are normally made from Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin