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Thermosetting plastics are those materials which. | |
A. | are formed into shape under heat and pressure and results in a permanently hard product [Correct Answer] |
B. | do not become hard with the application of heat and pressure and no chemical change occurs [Wrong Answer] |
C. | are flexible and can withstand considerable wear under suitable conditions [Wrong Answer] |
D. | are used as a friction lining for clutches and brakes [Wrong Answer] |