What is the amount of sea coal needed in cast irons for small casting moulding sands?
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What is the amount of sea coal needed in cast irons for large green casting moulding sands?
At what temperature is pitch distilled from soft coals?
Which of the following is not a cast steel?
Which of the following forms of iron is least malleable?
Pitch maybe used up to what percent?
Which among the following is not a cast iron?
What is the amount of carbon present in low carbon steel?
Which of the following increases the dry strength of the sand?
What is the amount of carbon present in high carbon steel?
Which among the following is a heavy metal?
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