微型钢球、小型钢球

1.材质：德扑圈app(201,304,316,316L,420,440,440C); 德扑圈app 钢GCr15; 碳钢1010,1045,1085;
2.产物风致：0.5mm-----2.5mm 0.5mm, 0.6mm, 0.7mm , 0.8mm,0.9mm,1.0mm,1.2mm,1.25mm,1.30mm,1.35mm,1.40mm,1.45mm,
1.50mm,1.588mm,1.60mm,1.65mm,1.75mm,2.0mm
3.级别：G10;

 
微型钢球