Lead can improve the cutting performance; brass this easy cutting brass used as watch &clock parts.
铅能改善黄铜的切削性能﹔这种易切削黄铜常用作钟表零件。
The main for the high precision spring, battery spring, electronic spring, Antenna spring, electronic hardware, instrument and meter, electric clock Watch a variety of precision parts.
主用于高精密弹簧、电池弹簧，电子弹簧，天线弹簧，电子五金、电镀挂具、仪器仪表、电器钟表等各种精密零件。
The main for the high precision spring, battery spring, electronic spring, Antenna spring, electronic hardware, instrument and meter, electric clock Watch a variety of precision parts.
主用于高精密弹簧、电池弹簧，电子弹簧，天线弹簧，电子五金、仪器仪表、电器钟表等各种精密零件。
The main for the high precision spring, battery spring, electronic spring, Antenna spring, electronic hardware, instrument and meter, electric clock Watch a variety of precision parts.
主用于高精密弹簧、电池弹簧，电子弹簧，天线弹簧，电子五金、仪器仪表、电器钟表等各种精密零件。
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