الوصف

Unit crankshaft box, whose main shafts are connected with half, case body is made of the HT**0 steel by casting, and fine processing by the computer. The main movable shaft, guide bar and push bar on the case body are all made of *0Cr alloyed,then dealt by carbonization. Bearings of main shaft adopt the famous brand of Ina,German 
Flat design frame
Aluminum alloy Trolly
Magnesium aluminum ally/ PU combined needle board
locked firmly by the air tube.