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we are one of the leading exporter of the bearing seamless steeltube,and the information are as follows:
1.coldrawn seamless steel sherodis annealed tube
2.concentricity: 0.2mm
3.surface defect:there will not any kind of crack on OD or ID(crackfree material)
4.straightness:1mm/1000mm
5.tolarance:OD /-0.1MM WT /-0.15MM


