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Polymer Technology
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are
50°C and 3 - 4 kg/cm2
50°C and 1 kgf/cm2
250°C and 10 kgf/cm2
250°C and 1 kgf/cm2
Correct Answer:
50°C and 3 - 4 kg/cm2
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