AT / ZFY Raise Borer The series ZFY and AT raise borers are mainly used to drill holes and ream ventilation shafts, filling raises and pipeline shaft, etc., and to excavate large cross-section....
Hunan NHM Construction Machinery Co., Ltd. a member of Hunan Nonferrous Metals Holding Group Co., Ltd under China Minmetals Corporation , is a specialized construction machinery manufacturer, ....