氮化硅球,氧化物陶瓷

陶瓷球—氮化硅球
2.0/2.5/3.0/6.0/10.0/12.0/12.3/12.7mm氮化硅陶瓷球g5滚珠si3n4
益瑞厂家钢球现货黑色氮化硅陶瓷球7.9375mm-14.2875mm高精度高硬度
875mm黑色氮化硅陶瓷球精球
供应氮化硅陶瓷球/氮化硅球/轴承用氮化硅球/氮化硅磨介球