Chemical Engineering Refractory Technology
Q Si percentage in silica refractories used in the walls of coke oven is about______________________?
  • A A. 45
  • B B. 60
  • C C. 80
  • D D. 95
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
Ω„Ϊ‘Ψ§Ϊ©Ψ§ΨŒ Ω…ΨͺΩ†Ψ§Ψ²ΨΉΨŒ Ψ¬ΪΎΪ―Ϊ‘Ψ§Ω„Ωˆ

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