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Description:

1)raw material:40CR, 35CRMO
2)bolt Grade:8.8, 12.9
3)Finish color:grey, black
4)Machine used:Heat, cold forge

40Cr 12.9gradehigh strength plow bolt China manufacturer, cutting edgebolt,

Name	Plow bolt
Color	Black/gray
Size	Diameter from 1/2"-1.1/8",M12-M30
Mechanicalgrade	10.9/12.9
Casehardening	HRC 38-43
Surfacetreatment	Phosphorization or blackplow bolt
Technology	Forging and thermalrefining plow bolt