Correct

孔型

/ kǒng xíng /
Strokes

Example

As a Noun

pass

1
Liángxíngkǒng
梁形孔
xíng

beam pass

2
Jīng
精轧
kǒngxíng
孔型

finishing pass

3
Chū
kǒngxíng
孔型

bloom pass