MCQOPTIONS
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| 1. |
Kel-F is a material, which is |
| A. | chemically known as polychlorotrifluor-oethylene (PTFE). |
| B. | having excellent chemical & high temperature resistance (upto 200 C). |
| C. | having elastomeric properties. |
| D. | all (a), (b) and (c). |
| Answer» E. | |