1. The pattern or patterns is/are not jointed to a stalk or spure also of wax to form a tree of patterns. |
2. The prepared moulds are placed in an oven and, heated gently to dry off the invest and melt out the bulk of wax. |
3. The moulds are usually poured by placing the moulds in a vacuum chamber. |
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2 and 3
Correct Answer: C
You need to login to perform this action.
You will be redirected in
3 sec