| 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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| 10/02/2007 | US7275677 Synchronized tubular friction welding arrangement |
| 10/02/2007 | US7275295 True vehicle running center shaft assembly system |
| 09/27/2007 | DE202006008001U1 Biegerichtmaschine für längliche Werkstücke Straightening machine for elongated workpieces |
| 09/26/2007 | CN200951455Y Machine for levelling leftover bits and pieces of stainless steel |
| 09/26/2007 | CN200951442Y Forming apparatus of pipe body production equipment |
| 09/26/2007 | CN200951439Y Device for aligning roofbolt |
| 09/26/2007 | CN101041170A Tension mechanism for profiled bar pressure straightening device |
| 09/12/2007 | CN200945495Y Roller type leveling machine thermal state working rollers with cooling means |
| 09/06/2007 | US20070204666 Tube expanding device |
| 09/05/2007 | EP1829626A1 Straightener |
| 09/05/2007 | CN200942410Y Automatic shaft straihtener |
| 09/04/2007 | US7263868 Method and apparatus for reforming and reprofiling a bottom portion of a container |
| 08/30/2007 | WO2007095843A1 Flexible three-dimensional work-piece forming equipment |
| 08/29/2007 | CN200939598Y Special platform for round reshaping checking and repairing thin-wall cylinder |
| 08/29/2007 | CN200939475Y Hydraulic stretcher leveler |
| 08/29/2007 | CN200939472Y Workpieces corrector |
| 08/22/2007 | CN2936478Y Universal four-roll straightener |
| 08/22/2007 | CN101020205A Method of regulating inclination angle of straightening roller |
| 08/22/2007 | CN101020204A Far infrared local heating process for correcting deformation of semi-annulus caused by heat treatment |
| 08/21/2007 | US7257975 Flange turning process/machine |
| 08/09/2007 | WO2007005564A3 Method and apparatus for forming a reinforcing bead in a container end closure |
| 08/08/2007 | CN2930911Y Corner plane locking mechanism of inclined roller straightening machine |
| 08/08/2007 | CN2930910Y Roll gap servo adjusting device for inclined roller straightening machine |
| 08/08/2007 | CN2930908Y Anvil bed hydraulic pressure auto-control main body apparatus of pressure straightening machine |
| 08/01/2007 | CN2928300Y Polar claw shaping mold for speed measuring motor |
| 08/01/2007 | CN2928294Y Correcting clamp for vehicle chassis |
| 08/01/2007 | CN2928281Y Straightening unit for pulling bend straightening machine |
| 08/01/2007 | CN101007327A Automatic precision hydraulic straightening machine |
| 07/25/2007 | CN2925759Y Template with roller-replacing function for flattening machine |
| 07/25/2007 | CN2925683Y 可移动扩径机 Removable expanding machine |
| 07/25/2007 | CN2925672Y Manual round trimmer of plastic metal composite pipe |
| 07/25/2007 | CN2925671Y Desk round trimmer of plastic metal composite pipe |
| 07/25/2007 | CN1327983C Aluminum alloy tubing straightening method and special fixture thereof |
| 07/24/2007 | US7246588 Assembled camshaft for engine and production method thereof |
| 07/18/2007 | CN2923085Y Correction clamp for main-beam pipe welding assembly |
| 07/18/2007 | CN2923084Y Corrector of shock-absorbing device |
| 07/11/2007 | CN2920469Y Magnesium alloy profile material straightener |
| 07/11/2007 | CN1994664A Heat processed bearing ring shaping method and shaping prop |
| 07/11/2007 | CN1994606A Straightening method and apparatus for small-diameter thin-wall metal tube |
| 07/04/2007 | CN2917865Y Rotary-type battery zinc-cartridge slotting machine |
| 07/04/2007 | CN2917853Y Bus leveling machine |
| 07/04/2007 | CN2917852Y Roller type leveling machine of variable roller number with different roller distance and roller diameter |
| 06/28/2007 | US20070144394 Partitioning method for pipe material, pipe material manufactured by the method, and gas generator |
| 06/20/2007 | CN2912856Y Differential spinning type corrugated pipe trimmer |
| 06/13/2007 | CN2910398Y Overhead protection and medium-arranged regulator of oblique roller straightner |
| 06/13/2007 | CN2910397Y Smoother |
| 06/13/2007 | CN1980755A Straightener |
| 06/13/2007 | CN1978690A Bainite steel rail with excellent anti-fatigue performance and its production method |
| 06/13/2007 | CN1978087A Apparatus for processing U-shape metal pipe and processing method |
| 06/06/2007 | CN2907945Y Oven tube press machine |
| 06/06/2007 | CN1975618A Intelligent work piece correcting system and correcting method thereof |
| 06/05/2007 | US7225660 Apparatus and method for expanding a tube diameter and a pole formed thereby |
| 05/30/2007 | CN1970184A Steel pipe-straightening roller for casting high chromium iron or high chrome steel |
| 05/30/2007 | CN1970183A Magnesium alloy extrusion product straightening method and tension straightening machine used therefor |
| 05/30/2007 | CN1970182A Two-stage tandem cross roll straightener bite servo and regulating system |
| 05/24/2007 | US20070113609 High-performance and high-efficiency rolled fin tube and forming disk therefor |
| 05/23/2007 | EP1641575B1 Method for leveling hot profiles |
| 05/23/2007 | CN1967979A Alignment device of out shaft of rotor axis of electric engine |
| 05/16/2007 | CN2900003Y Hand operated rotary pressure type steel pipe straightener |
| 05/10/2007 | WO2007052361A1 Straightener for shaft member |
| 05/09/2007 | EP1651364A4 Apparatus for rectifing round pipe and tubing |
| 05/09/2007 | CN1314495C Hydraulic stretch flattener |
| 05/03/2007 | WO2007049526A1 Method of correcting metal tube and correcting press metal die |
| 05/03/2007 | WO2007015859A3 Process for laser rounding and flattening of cylindrical parts |
| 05/02/2007 | CN2894882Y Corrugated expansion joint reshaping machine |
| 05/02/2007 | CN2894881Y Automobile heat exchanger fin flattening device |
| 05/01/2007 | US7210321 Method and apparatus for measuring centerline runout and out of roundness of a shaft |
| 04/25/2007 | CN2892312Y Expanding tube tool based on pneumatic hydraulic |
| 04/18/2007 | CN1948538A Petroleum steel tube capable of anti hydrogen sulfide stress corrosion and its manufacturing method |
| 04/18/2007 | CN1947881A Shaping mould and its using method |
| 04/05/2007 | DE202007000130U1 Einrichtung zur Erzeugung von Abdrücken konstanter Tiefe auf gekrümmten Oberflächen Means for generating a constant depth marks on curved surfaces |
| 04/04/2007 | CN2885447Y Hydraulic dynamic constant-pressure straightener |
| 04/04/2007 | CN2885446Y Aligning and derusting integral machine used before steel rail welding |
| 04/04/2007 | CN2885444Y Automatic combination and switching device for bi-directional aligning fulcra |
| 03/28/2007 | CN2882842Y Mobile roller packing gear of flattener conveyer |
| 03/28/2007 | CN1935404A Creep ageing straightening method and apparatus |
| 03/22/2007 | US20070062239 Roll straightener |
| 03/07/2007 | CN1302869C Calibrat roller adjuster of roller number variable rollering calibrator |
| 03/06/2007 | US7185519 Methods and apparatus for monitoring and conditioning strip material |
| 02/15/2007 | DE102005038423A1 Straightening machine for deformed sheet steel feet on Dusseldorf pallets has sets of swiveling jaws, between whose inner surfaces feet are straightened, which are opened and closed by adjusting drive |
| 02/14/2007 | CN2868487Y Automatic precision hydraulic straightening machine |
| 02/14/2007 | CN2868486Y 铝导杆矫直机 Aluminum guide rod straightening machine |
| 02/14/2007 | CN1913985A Cold-finished seamless steel pipe |
| 02/08/2007 | CA2615916A1 Process for laser rounding and flattening of cylindrical parts |
| 02/07/2007 | CN2865899Y Automobile half axle straightening and testing equipment |
| 02/07/2007 | CN2865898Y Rockbolt straightener |
| 02/07/2007 | CN1298444C Hot state working roller with cooling device |
| 01/25/2007 | US20070017268 Metal pipe straightening method, straightening roller, and manufacturing device |
| 01/24/2007 | CN1296602C Assembling camshaft for engine and producing method thereof |
| 01/16/2007 | US7162904 Method for producing a bung for a metal cask |
| 01/16/2007 | US7162903 Shaft truing system |
| 01/10/2007 | CN2855575Y Die for shaping pawl of speedometer |
| 01/10/2007 | CN2855566Y Alignment device for shaped-material made of magnesium alloy or aluminium alloy during formation process |
| 01/09/2007 | US7159435 Apparatus for straightening pipe |
| 01/09/2007 | US7159431 Method of operating a section straightening machine |
| 01/03/2007 | CN1887514A Process of welding flow passage cover plate and frame of through-flow generator set |
| 12/27/2006 | CN2850746Y Cylinder enlarging machine |
| 12/20/2006 | CN2848407Y Levelling lateral cutting machine set |
| 12/20/2006 | CN2848403Y Open drum shaping machine |
| 12/20/2006 | CN2848402Y Levelling machine for longinal cutting, reeling, levelling combined machine set |