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4. What is resoles and what is novolacs? 5. How can we distinguish if a plastics is elastomer or not? 6. What is vulcanization? 7. The following figure shows an injection molding machine. The processes include inject, pack, eject, cool, melt. Arrange the injection molding cycle in the correct order. 8. Please identify the features (runner, sprue, cavity, gate) of the injection mold tool. Front View 9. Please sketch the side-view of the mold for bottle caps production.
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olufton- Toneckon modelling ts a cyclic procen Duriuq the tnyectc ou modellinq o ceus tha Ob servatrou a cf ese mold Opentu

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