Correct

骑缝

/ jì féng / 
Strokes

Example

As a Noun

line of perforation on a document/paper; perforation

1
Zài
在
sānliánshàn
三联单
de
的
jìféng
骑缝
shàng
上
gài
盖
yìn
印

put a seal across the perforation on the triplicate form

2
Jìféngzhāng
骑缝章

seal on the perforation