সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
What type of iron is obtained from blast furnace?
What type of iron is obtained from blast furnace?
- ক. wrought iron
- খ. soft iron
- গ. pig iron
- ঘ. cast iron
সঠিক উত্তরঃ cast iron
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Basic Information of Daily Science, Inventions and...