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We apply Advanced precision cold-drawn, finish grinding and high=level accuracy polishing engineering to production. All technical parameters of our products comply with even superior to state standards. Our products can be directly used in oil cylinder, air cylinder and speed-reducer. In addition, they are widely used for textile printing &dyeing, mechanical slide guide of printing machine, die cast machine, guide rod of injection machine, crown bar and guide post of four-post hydraulic press. Rod diameter: 6- 1000mm Material:45 2Cr13. Supply status: untreated surface: chrome-plating, nickel-plating or phosphate-treat ment surface. Variety Technical parameters Φ6Φ8Φ10Φ12Φ16Φ20Φ22Φ25Φ28Φ30Φ32Φ35Φ36Φ38Φ40Φ45Φ50Φ55Φ60Φ65Φ70Φ75Φ80Φ85Φ90Φ100Φ105Φ110Φ120Φ125Φ130Φ140Φ150Φ160Φ170Φ180Φ200Φ220Φ250Φ300Φ350Φ400Φ450Φ500Φ550Φ600Φ650Φ700-1000 Technical parameterTechnical parameters lengthSurface roughnessSurface treatment hardnessCircualar common errorPermitted error of total lengthHardness of regulating axis Supply statusStraightnesschrome-plated thicknessmaterialΦ6-Φ12800-1000HRC above 60 GB1184 9 levelGB1100 IT levelHB241 -267untreated surface; chrome-plating, nickel-planting or phosphate-treat ment surface. 0.15 /1000 mm0.02 - 0.0345# 2Cr13Φ16-Φ25800-3000Φ30-Φ50800-5000Φ55--Φ1001000-7000Φ105-Φ10001000-9000