微型钢球，微小钢珠，小型钢球:
1.材质:
不锈钢球(201,304,316,316L,420,440,440C);
轴承钢球GCr15, AISI52100, SUJ2, 100Cr6;
碳钢球Q235,AISI1010,1045,1085;
2.规格: 0.3mm----3mm
0.3mm,0.4mm,0.5mm, 0.6mm, 0.7mm , 0.8mm,1.0mm, 1.2mm,1.30mm,1.35mm,1.40mm,1.45mm,1.50mm,1.588mm,1.60mm,,2.0mm ,2.381mm，2.5mm，2.778mm,3mm
3.级别: G10、G16、G20、G28、G40、G60、G100、G200、G500、G1000;