specifications	φ6-φ12	φ16-φ25	φ30-φ50	φ55-φ100	φ105-φ1200
length	200-2000	200-3000	200-5000	200-10000	1000-10000
Surface roughness	0.4-0.1
Surface Treatment of hardness	up HRC60		Straightness	0.15/1000mm
Circle of Tolerance	GB1184 9grade		Chrome thickness	According to user requirements
Full-length size Tolerance	GB1100ITgrade		Material	According to user requirements
Axis of hardness	HB220-280
Availability Status	Not dealing with the surface, surface chrome or nickel phosphorus and nitrogen surface salt spray
Note:For special specifications,call(letter)custom.