Answer Posted / vish

oxide ore:
chalcopyrite
chalcocite
bornite
sulphide ore
malachite
azurite
cuprite

What is iron ferrite and where is it found?

954

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In grey iron sulpher was above 0.15% what react on metal?

1030

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Define what other events in history might have affected the growth of metallurgy?

1217

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Where is mangenese steel used?

1073

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Can you explain the refrigeration cycle?

1013

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What is iron ferrite and what is it used for?

1012

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what is No.1 Laathing Scrap Bundle ( Mill Scrap )

2156

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what kind of cleaning substance or treatments keep or help prevent cast iron from rusting?

1057

---

What is the function of washer?

988

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What is the composition of cast grade iron 35?

923

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what is the grain size of lead as an element and as an alloy such as lead tin alloy?

867

---

Why post-heating is done in alloy steel welding?

984

---

Define what is the minimum temperature for stress relieving of astm a 519 gr.4130 material and please tell us where we can find the location.

925

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What is the critical speed of shaft?

1007

---

what is meant by hardening ability of metals?

939

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