微型钢球，小型钢球:  

1.材质:  

不锈钢(201,304,316,316L,420,440,440C);  

轴承钢GCr15;  

碳钢1010,1045,1085;  

2.规格: 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,2.0mm  

3.级别: G16--G1000;  

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