A.頂頭、軋輥 B.頂頭、軋輥、芯棒 C.頂頭、軋輥、導(dǎo)板
A.43.5% B.63.1% C.33.5%
A.80根/小時(shí) B.90根/小時(shí) C.100根/小時(shí)