What is the casting temperature for a hardness of 22?
CREATE TABLE table_name_88 (casting_at__°c_ VARCHAR, hardness VARCHAR)
SELECT casting_at__°c_ FROM table_name_88 WHERE hardness = "22"
### Context: CREATE TABLE table_name_88 (casting_at__°c_ VARCHAR, hardness VARCHAR) ### Question: What is the casting temperature for a hardness of 22? ### Answer: SELECT casting_at__°c_ FROM table_name_88 WHERE hardness = "22"