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Porosity is induced in insulating refractories by adding?

  1. Powdered naphthalene
  2. Ammonium chloride/sulphate
  3. Calcium phosphate
  4. All of the above
LohaHridoy
LohaHridoy
4 views
2025-01-04 04:42

1 Answers

AhmedNazir
AhmedNazir

Answer: Option 4

4 views Answered 2022-09-01 13:21

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