国产铍青铜qbe2, 圆线,扁线,规格0.4*0.75,0.4*1.0,0.7*0.9,0.62*1.0,r0.4*0.76mm等,公差0.02mm,或可根据图纸的异型线材,有半硬,硬态,特硬性能提供,表面光滑平整无毛刺