张振清 Steve Zhang

振动清箱栅 shake-out screen ; shake-out grid

振动清箱 mechanical knockout by vibration ; shake-out

振动清箱机 molding box shake-out device ; shake-out machine

振动清箱性能 shake-out property

李振清 Chen-ching Li

王振清 Zhen-qing WANG

郭振清 Zhen-Qing Guo

刘振清 Zhen-Qing Liu

振动清灰 vibration cleaning