how to make petanque ,second step make to semicircle

We
always play petanque ball, garden boules set but how to make it?

Today we Tianci Ball
Manufactory in China made a series of video to tell you how to make the metal petanque in factory. 

Pls enjoy them , this is second step:  making to semicircle .

Any questions welcome to leave
message to us. More news pls check: 

www.ballmanufactory.com  Email: info@ballmanufactory.com