MCQ Practice All Subject 📖 RCC ঢালাইয়ে ব্যবহৃত Coarse aggregate এর size সাধারণত কত? ক 10 mm down gradeখ 16 mm down gradeগ 20 mm down gradeঘ 25 mm down grade Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up