주철의 분류에서 특수주철에 해당하는 것은?① 칠드주철② 보통주철

주철의 분류에서 특수주철에 해당하는 것은?
① 칠드주철
② 보통주철
③ 합금주철
④ 고급주철

Results (English) 1:

In the classification of special cast iron and cast iron, it is equivalent to?① chilled cast iron② usually cast iron③ alloy cast iron④ Advanced cast iron

Results (English) 2:

It is for the classification of special cast iron from iron?
① chilled cast iron
② usually cast
③ iron alloy
④ high grade cast iron

Results (English) 3:

classification of special cast iron cast iron from the is.will you ① cast iron② ordinary shares.③ alloy cast iron④ high-grade cast iron