| 出生地 |
Jiangsu China (Mainland) |
| 牌子的名字 |
Sintoku |
| 面 |
all size |
| 材料 |
钢铁 |
Description: Cast Steel Shot Hardness: 42-50 HRC 56-60 HRC 63-66 HRC Hardness Deviation: ± 3.0 HRC Durability: 2000-2800 times Microstructure: Tempered Martensite or Sorbite Density: 7.6 g/cm3 Bulk Density: 4.2 g/cm3 Advantage: 1. ingredients stability. 2. high toughness and tensile strength. 3. steel balls to overcome all the weaknesses, no holes, no broken. 4.Life is long.