Advantage: frame can open, make replacing hammer head, back plate and lining board work easier.

优势：机架可以开启，使得更换锤头、反击板及衬板的工作更加简便易行。

youdao

Advantage: frame can open, make replacing hammer head, back plate and lining board work easier.

优势：机架可以开启，使得更换锤头、反击板及衬板的工作更加简便易行。

youdao