| Patents for B21D 3 - Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (4,094) |
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| 01/09/2013 | CN101045245B One-piece calibration method for crankcase tempering, device for implementing the method |
| 01/02/2013 | CN202640824U Automatic workpiece detection control system for straightening hydraulic press |
| 01/02/2013 | CN202639082U Combined mould for sizing outer diameters of welded steel tubes |
| 01/02/2013 | CN202638981U Blank pipe rounding device provided with diffuse reflection type photoelectric sensor |
| 01/02/2013 | CN202638980U Seamless steel pipe rounding mechanism |
| 01/02/2013 | CN202638979U Section forming machine |
| 01/02/2013 | CN202638978U Variable roller spacing straightener |
| 01/02/2013 | CN202638977U Clamp device for tension straightener |
| 01/02/2013 | CN202638976U Header straightener for hydraulic steel pipes |
| 01/02/2013 | CN202638975U Lifting device of welding steel tube straightening mold |
| 01/02/2013 | CN202638974U Straightening and locating mechanism of sucker rods |
| 01/02/2013 | CN202638973U Straightening mechanism for sucker rod |
| 01/02/2013 | CN202638972U Positioning control device of automatic straightening hydraulic machine workpiece detection head |
| 01/02/2013 | CN202638968U Hydraulic shoe correcting machine |
| 01/02/2013 | CN202638963U Perspective apparatus of straightening machine |
| 01/02/2013 | CN102847755A Connecting rod straightening machine and using method thereof |
| 01/02/2013 | CN102847754A Lower roller angle adjustment device of pipe/bar straightening machine |
| 01/02/2013 | CN102179425B Machine for automatically straightening axle body |
| 12/26/2012 | CN202621744U Online diameter enlarging and correcting device of steel pipe |
| 12/26/2012 | CN202621641U Computer to conventional plate (UVCTP) automatic production line aluminum plate cutting levelling device |
| 12/26/2012 | CN202621640U Bend pipe straightening device |
| 12/26/2012 | CN202621639U Improved thirteen-roller straightener |
| 12/26/2012 | CN202621638U Straightening mechanism for thin oil tube |
| 12/26/2012 | CN202621637U Hydraulic locking device |
| 12/26/2012 | CN202621636U Guide rail automatically overturning device for straightening machine |
| 12/26/2012 | CN202621535U Profile steel straightening ferric oxide skin chip collection device |
| 12/26/2012 | CN102844128A Method for straightening tube and straightening roll |
| 12/26/2012 | CN102837159A Method using 0 chromium (Cr) 17 nickel (Ni) 4 copper (Cu) 4 niobium (Nb) thin wall square pipes to machine and manufacture linkage ring guide pipe parts |
| 12/26/2012 | CN102836900A U-shaped support steel reshaping and repairing machine |
| 12/26/2012 | CN102319773B Twisting regulation machine |
| 12/26/2012 | CN102284562B Long screw straightening machine |
| 12/26/2012 | CN101966538B Manual straightening device of engine crankshaft |
| 12/19/2012 | CN202606721U Straightening machine feeding device |
| 12/19/2012 | CN202606586U Barrel outer wall reshaping device |
| 12/19/2012 | CN202606585U Straightening machine with overrunning clutch function |
| 12/19/2012 | CN202606584U Novel straightening machine |
| 12/19/2012 | CN202606583U Wave compression clamp |
| 12/19/2012 | CN202606582U Straightening wheel matching with nail making machine |
| 12/19/2012 | CN202606581U Collector tube distortion rectification equipment of air conditioner condenser |
| 12/19/2012 | CN202606580U Splicing flange leveling device for wind driven generator tower tube |
| 12/19/2012 | CN102825108A On-line cleaning and finishing device |
| 12/12/2012 | CN202591423U Pipe blank shaping module |
| 12/12/2012 | CN202591308U Bicycle frame calibration table |
| 12/12/2012 | CN202591307U Round steel ring integration chuck applied to steel plate rounding machine |
| 12/12/2012 | CN202591306U Metal pipe blank shaper |
| 12/12/2012 | CN202591305U Portable pipeline straightening device |
| 12/12/2012 | CN202591304U Shape righting aligning machine |
| 12/12/2012 | CN202591303U Reshaping clamp for shaft |
| 12/12/2012 | CN202591302U Trimming machine of compression roller shaft |
| 12/12/2012 | CN202591301U Straightening machine |
| 12/12/2012 | CN202591300U Forging flattening and straightening device |
| 12/12/2012 | CN202591299U Press roller device on mechanical straightening machine |
| 12/12/2012 | CN202591298U Multifunctional bracket of jack |
| 12/12/2012 | CN202591297U Fork truck mast straightening machine and mast production line using same |
| 12/12/2012 | CN102821887A Method for suppressing surface indentation flaw in element tube for seamless steel tube |
| 12/12/2012 | CN102814360A Multipurpose flange correcting jig device |
| 12/12/2012 | CN102284565B Automatic discharging and receiving device of cross roll straightening machine |
| 12/06/2012 | US20120304724 Method for straightening tube and straightening roll |
| 12/05/2012 | CN202570882U Rotating shaft straightening device |
| 12/05/2012 | CN202570881U Automatic rounding machine |
| 12/05/2012 | CN202570880U Straightening device of rail end before steel rail welding |
| 12/05/2012 | CN202570879U Double-head correction system for impulse welding of shaft tubes of axle cases |
| 12/05/2012 | CN202570878U Shape correcting machine |
| 12/05/2012 | CN202570877U Pipe straightening traction mechanism |
| 12/05/2012 | CN202570876U T-shaped steel panel rectification mechanism for bridge |
| 12/05/2012 | CN202570875U Numerical control air valve straightening machine |
| 12/05/2012 | CN202570874U Repairing machine of automobile tyre rim |
| 12/05/2012 | CN202570873U Workbench for reshaping pipes of air conditioner |
| 12/05/2012 | CN202570872U Cold bending correction device for steel pipe rods |
| 12/05/2012 | CN202570871U Copper pipe straightening machine |
| 12/05/2012 | CN202570862U Movable hydraulic shape correction machine |
| 12/05/2012 | CN102806251A Torsion rectifying device for straight slit welded pipes |
| 12/04/2012 | US8322176 System and method for incrementally forming a workpiece |
| 11/29/2012 | DE102009024075B4 Biegevorrichtung für stabförmige Werkstücke Bending apparatus for rod-shaped workpieces |
| 11/28/2012 | EP2527084A2 Method for centring rotation-symmetrical bodies and assembly for same |
| 11/28/2012 | CN202555636U U-shaped horizontal type pressure straightening machine |
| 11/28/2012 | CN202555635U U-shaped horizontal type pressure straightening machine convenient to clean |
| 11/28/2012 | CN202555634U Part straightener |
| 11/28/2012 | CN202555633U Scratching-preventive rotating device of inlet of straightening machine |
| 11/28/2012 | CN202555632U Plastic pinch roller for straightener |
| 11/28/2012 | CN202555631U Z-shaped steel straightening roll and z-shaped steel straightening roll system |
| 11/28/2012 | CN202555630U Steel pipe straightening roll |
| 11/28/2012 | CN202555629U Rounding and straightening synchronous hydraulic machine for steel pipe of large diameter |
| 11/28/2012 | CN202555628U Shaping device for inner hole of steel pipe |
| 11/28/2012 | CN202555623U Hot work correction cushion block |
| 11/28/2012 | CN102794335A Joist steel straightening machine |
| 11/28/2012 | CN102120232B Gap bridge lifting method and mechanism for use in online straightening of aluminum sections |
| 11/27/2012 | CA2633795C Tubing straightener |
| 11/22/2012 | US20120291507 Device for unwinding and straightening coiled metallic tubes |
| 11/21/2012 | CN202539281U Circle adjusting frame for manufacturing steel pressure pipe |
| 11/21/2012 | CN202539280U Arc-shaped correction fixture for pipe orifice |
| 11/21/2012 | CN202539279U Predeformation processing device of combine-harvester bearing pole |
| 11/21/2012 | CN202539278U On-line red steel elbow straightener |
| 11/21/2012 | CN202539277U Novel transmission device of withdrawal and straightening machine for square and round billets |
| 11/21/2012 | CN202539276U Copper rod straightener |
| 11/21/2012 | CN202539275U On-line straightening device |
| 11/21/2012 | CN202539274U Upright column repairing and straightening machine for guardrail |
| 11/21/2012 | CN202539273U Hydraulic rail aligner |
| 11/21/2012 | CN102784816A Method for installing and debugging crankshaft of large diesel engine |
| 11/21/2012 | CN102784811A Combined roller |