a) True
b) False
Answer: a
Explanation: The above statement is true. In general, temperatures for melt phase thermoformed Polypropylene is greater than SPPF(Solid phase pressure formed) Polypropylene. It is melt phase thermoformed at 154°C–157°C and SPPF at 141°C–146°C, where it is still virtually a solid with high viscosity, requiring the application of strong forces.
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