Friday, 28 April 2017

Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting tougimess ?

6. Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting tougimess ?
o Carbon black
o Rosin
o Phosphorous
o Pine oil

Ans: A

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