10/主驱动
Main drive
蜗轮材料选用优质耐磨合金铜,由精密机床加工,高级技师精细刮削而成,磨损极小,精度高。曲轴,用铬钢高频淬火处理,使用寿命长。摆杆由球磨铸铁铸造而成,强度高,耐磨耐用。
Worm gear material selection of high quality wear resistant alloy copper, from precision machine tool processing, senior technician fine scraping,wear a very small, high precision. Crankshaft steel with high frequency quenching, long service life. Pendulum polished cast by the cast iron, high strength, wear and durable.