... .This type machine is composed by the vertical shaft, revolving arm, rotating shaft, hoist etc, the bottom of the vertical ... fixed on the concreate base. Horizontally rotation of the revolving arm: Manual, depend on the operator use the human force to ... Intruduction: -- Since 1989 TOP 5 enterprise Focus on EOT Crane&GANTRY Crane Agency cooperation oversea highly welcomed 5% discount offered for Huge ...