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Jinan Jinchi Construction materials Co.,Ltd

1. Forged steel balls Size: 20mm-150mm Hardness:HRC55-65 Chemical elements: C: 0.52-0.85; Si: 0.15-0.37; Mn: 0.6-1.2; S & P: 0.04, Cr: 1.5Max. 2.High chrome cast balls 1)Size:20mm-120mm Hardness: HRC58~65 chemical elemen ...

Jinan Jinchi Construction materials Co.,Ltd
mingshui, jinan, shandong, china
jinan, SA 25020
China

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