| 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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| 02/23/2011 | CN201751029U Improved stretching and bending corrector |
| 02/23/2011 | CN101979173A Hydraulic straightening device |
| 02/16/2011 | CN201744526U Shaping and correcting device of heterotypic sectional corrugated pipe |
| 02/16/2011 | CN201744525U Oil seal straightener |
| 02/16/2011 | CN101537439B Preparation process of high-performance and high accuracy rods and bars of biological titanium alloy |
| 02/16/2011 | CN101311858B Steel tube expansion unit automatic control system |
| 02/09/2011 | CN201736249U Detachable rounding scissors |
| 02/09/2011 | CN201735645U Adjusting device for turn K2 type cross rod |
| 02/09/2011 | CN201735644U Middle tube shape forming mechanism for inner container assembling machine of water heater |
| 02/09/2011 | CN101966543A Pressing wheel device on hydraulic correction machine |
| 02/09/2011 | CN101966538A Manual straightening device of engine crankshaft |
| 02/03/2011 | WO2011011893A1 Apparatus and method for forming an antipollution device housing |
| 02/03/2011 | CA2769348A1 Apparatus and method for forming an antipollution device housing |
| 02/02/2011 | EP2021144B1 Method of machining the bearing seats of the main and rod bearings of crankshafts |
| 02/02/2011 | CN201728290U High-temperature restriking die locking mechanism for titanium alloy castings |
| 02/02/2011 | CN201728251U Parts straightening device |
| 02/02/2011 | CN201728250U Rounding machine for large ring pieces |
| 02/02/2011 | CN201728249U Movable portal type straightening machine |
| 02/02/2011 | CN101961739A Hydraulic roll table lifting mechanism of hydraulic leveling machine |
| 02/01/2011 | CA2613527C Method and apparatus for forming a reinforcing bead in a container end closure |
| 01/26/2011 | CN201720326U Gear ring blank reshaping mould |
| 01/26/2011 | CN201720293U Hot straightening mold of connection rod of fracture splitting |
| 01/26/2011 | CN201720292U Upper strip correction device of automobile doorframe |
| 01/26/2011 | CN201720291U Bar stock straightener |
| 01/26/2011 | CN201720290U Copper pipe straightening machine |
| 01/26/2011 | CN201720289U Integrated steel tube straightener |
| 01/26/2011 | CN201720288U Bar wire sample straightener |
| 01/26/2011 | CN201720287U Pipe pile and pipeline end plate leveling machine |
| 01/26/2011 | CN201720286U Pressure steel pipe hydraulic circle regulating frame |
| 01/26/2011 | CN101956888A Solid ramjet shell bonding, pressing and assembling method and rounding device |
| 01/26/2011 | CN101954413A Sizing die for bimetallic support stamped part |
| 01/19/2011 | CN201711394U Anti-stop block correcting machine for wavy guardrail of freeway |
| 01/19/2011 | CN201711393U Straightening equipment |
| 01/19/2011 | CN201711392U Smoothing device |
| 01/19/2011 | CN201711391U Straightener |
| 01/19/2011 | CN201711390U Clamper for manufacturing automobile assembly |
| 01/19/2011 | CN101947575A Device for adjusting bending of cross rod for rail wagon |
| 01/19/2011 | CN101947574A Steel pipe correction machine |
| 01/18/2011 | CA2648714C Process for straightening tube and method for producing tube therewith |
| 01/12/2011 | CN201702701U Beveler |
| 01/12/2011 | CN201702217U T-shaped profile straightening device |
| 01/12/2011 | CN201702216U Straight-member workpiece straightening mechanism |
| 01/12/2011 | CN201702215U Earth wire linear compression coupling pipe correcting device |
| 01/12/2011 | CN201702214U Light H-beam straightening device |
| 01/12/2011 | CN201702213U Device for straightening metal thin-wall expand tube |
| 01/12/2011 | CN201702212U Straightening system of mold rod on drawing machine for manufacturing steel seamless gas bottles |
| 01/12/2011 | CN201702209U Hanging supporting seat of straightener straightening roll |
| 01/12/2011 | CN101941028A Device and method for correcting spatially-downwarped steel beam |
| 01/06/2011 | US20110002565 Bearing bush |
| 01/06/2011 | US20110002433 Water Reactor Fuel Cladding Tube |
| 01/05/2011 | CN201693093U H-shaped steel web plate straightening and centering mechanism |
| 01/05/2011 | CN201693033U Axle quick straightening device |
| 01/05/2011 | CN201693032U Valve correcting device |
| 01/05/2011 | CN201693031U Circular pipe straightener |
| 01/05/2011 | CN201693030U Sectional material correction mechanism |
| 01/05/2011 | CN201693029U Roll changing device of steel pipe and round bar straightener |
| 01/05/2011 | CN201693028U Straightening processing equipment of seamless steel pipe |
| 01/05/2011 | CN101937237A Automatic positioning method for drill rod end straightening |
| 01/05/2011 | CN101934308A Method and device for straightening multi-scale bending guide rail |
| 01/05/2011 | CN101934307A Follow-up precise straightening hydraulic machine servo system operating mechanism |
| 01/05/2011 | CN101653795B Vertical hydraulic straightening machine |
| 01/05/2011 | CN101569901B Lifting hydrostatic press |
| 01/04/2011 | US7861571 Trapped ball draw process for reducing the diameter of tubing |
| 01/04/2011 | CA2645932C Apparatus for pipe end sizing and method for pipe end sizing |
| 01/04/2011 | CA2542181C Apparatus for rectifying round pipe and tubing |
| 12/29/2010 | CN201684803U Section bar straightening device |
| 12/29/2010 | CN201684802U Super-wide H-section steel leveling machine |
| 12/29/2010 | CN101927280A Method for straightening flatness at end part of steel rail |
| 12/29/2010 | CN101927279A Straightener for revising hydraulic pressure evenness |
| 12/29/2010 | CN101927278A Method for realizing precision straightening of thin-wall seamless steel tubes by adopting six-roller straightener |
| 12/23/2010 | US20100323854 Press bars for weightlifting exercises and related methods for using them |
| 12/22/2010 | CN201677524U Hydraulic press of jack |
| 12/22/2010 | CN201676919U Micro-deformation straightening device of crankshaft forging blank |
| 12/22/2010 | CN201676918U Drawing head structure for aluminum profile products |
| 12/22/2010 | CN101920296A Centering mechanism of transverse leveling machine for T-shaped rafts |
| 12/15/2010 | CN201673958U Automatic lug trimming die |
| 12/15/2010 | CN201669316U Hand screw press type steel tube straightener |
| 12/15/2010 | CN201669315U High-precision and efficient camshaft straightening device |
| 12/15/2010 | CN201669314U Adjustable straightening feed device of copper extruding machine |
| 12/15/2010 | CN1715449B Boiler plate heating device and method |
| 12/15/2010 | CN101912902A Integrated ultrasonic de-stressing automatic T-shaped guide rail straightening machine |
| 12/15/2010 | CN101912901A Alignment device for steel rail laying site and method for aligning steel rail by using same |
| 12/15/2010 | CN101439370B Planetary web roll rotating hub type flattening machine |
| 12/15/2010 | CN101285151B Petroleum case pipe with high strength and toughness and producing method thereof |
| 12/14/2010 | US7849724 Method of manufacturing a ring-shaped member |
| 12/09/2010 | WO2010139096A1 Correction method for one of a row of tubes |
| 12/09/2010 | DE102009024075A1 Biegevorrichtung für stabförmige Werkstücke Bending apparatus for rod-shaped workpieces |
| 12/08/2010 | CN201664715U Multifunctional angle iron aligning, angle-open and angle-close machine |
| 12/08/2010 | CN201664714U Rolling-type angle iron straightening machine |
| 12/08/2010 | CN101905408A Process for producing large-diameter core rods of pipe tandem mills |
| 12/08/2010 | CN101905257A Bending/straightening mechanism for H-shaped and T-shaped steel girders and bending/straightening method thereof |
| 12/08/2010 | CN101296760B Method of correcting metal tube and correcting press metal die |
| 12/08/2010 | CN101214514B Corner iron manufacturing method |
| 12/01/2010 | CN101151111B Automatic control method of roll type pipe correction machine |
| 11/24/2010 | CN201644629U Rolling die |
| 11/24/2010 | CN201644626U Tube body straightening pressure head |
| 11/24/2010 | CN201644566U Bar stock straightener |
| 11/24/2010 | CN201644565U Novel deflection detection device of pressure straightener |
| 11/24/2010 | CN201644564U Continuous oil pipe straightener |
| 11/24/2010 | CN201644563U Profile steel straightening roller device |