|
Thermosetting plastic is |
|||
|
(a) |
polythene |
(b) |
PVC |
|
(c) |
Bakelite |
(d) |
polyproprene |
|
Thermosetting plastic is |
|||
|
(a) |
polythene |
(b) |
PVC |
|
(c) |
Bakelite |
(d) |
polyproprene |