Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?
(A) 50°C and 3 – 4 kg/cm2
(B) 50°C and 1 kgf/cm2
(C) 250°C and 10 kgf/cm2
(D) 250°C and 1 kgf/cm2
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?
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