hat
1.Steel-soudé konstriksyon, Vibwasyon pou elimine tèt chaje, ak tout fòs anwo nan syèl la ak bon rigidity.2.Hydraulic sou tèt ki mennen nan machine, steadiness ak asirans ke. Mekanik arè, en ontòsyon bar pou kenbe synch
eng
2.Hydraulic top-drive, steadiness and reliability. Mechanical stop, steel torsion bar to maintain synchronization, high precision.