0 votes
72 views
asked in production by (215k points)
edited by
Riser is designed so as to

              (a) Freeze after the casting freezes

              (b) Freezing before the casting freezes

              (c) Freeze at the same as the casting

              (d) Minimize the time of pouring

Please log in or register to answer this question.

Welcome to Q&A discussion forum, where you can ask questions and receive answers from other members of the community.

10.4k questions

274 answers

26 comments

15.3k users

...