特点Features:
1. 优质钢板焊接机身，均经过回火、抛丸处理，刚性好，精度稳定；
Steel welded body, tempering treatment or VSR(Vibratory Stress Relief), high rigidity, accuracy and stability;
2. 曲轴纵置，结构紧凑
Vertical located crankshaft, compact structure;
3. 高频淬火后曲轴进行磨削处理;
The crankshaft undergoes grinding treatment after high frequency quenching;