Correct

弓子

/ gōng zǐ / 
Strokes

Example

As a Noun

bow (of stringed instrument)

1
Xiǎotíqín
小提琴
gōngzǐ
弓子

violin bow; bow of a violin

As a Noun

anything bow-shaped

2
Dàn
弹
miánhua
棉花
gōngzǐ
弓子

bow used in teasing cotton