When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and what are the basicthing, which makes such a difference.

953

---

What is the difference between diagrams of it and ct in heat treatment of steels?

1028

---

How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny? What is the cause of this?

1034

---

What metal cord transfers electricity, and how can I tell?

887

---

What is concentrate?

807

---

What is rock quarry?

760

---

What is oceanographers?

947

---

What is bitumen?

857

---

What is what are some of the sub-disciplines within the field of geology?

860

---

What is anode?

819

---

What is metamorphic rock?

811

---

What is cleavage?

880

---

What is crust?

786

---

What is igneous rock?

810

---

What is matte?

850

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