8.8 10.9 12.9 grade black cutting edge blade plow bolts and nuts

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1.Raw material: 40cr, 45Cr, 35Cr, 35CrMO
2.Fit models: Caterpillar, Komatsu, Kobelco, Hitachi, Sumitomo, Kato, Daewoo, Hyundai etc
3.Impact: 21-30J
4.Hardness: HRC38-52
5.Mechanical grade: 8.8, 10.9, 12.9

6. Diameter:1/2"~1-1/8", M12-30 
7.Color: black, gray

8.Machine:heating forging machine

9.Surface treatment:Black oxide,phosphating

10.Carton box fixed on plywood pallet



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Ms. Silver Yu
Tel: 86-574-8822025
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Ningbo Yasheng Casting Industry Co.,Ltd
Hengxi Industrial Park, Yinzhou, Ningbo, Zhejiang, China (Mainland)
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