| 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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| 11/24/2010 | CN201644562U Positioning roller device |
| 11/24/2010 | CN201644561U Automatic roundness correcting device of round tubular part |
| 11/24/2010 | CN201644560U Hydraulic corrector |
| 11/24/2010 | CN101890443A Straightening method without participation of straight line segments on shaft |
| 11/24/2010 | CN101215626B Continuous heat treatment method for angle steel and angle steel manufacturing method |
| 11/23/2010 | US7836741 Rotary expansion |
| 11/17/2010 | CN201636183U Coupling bolt anti-loosing structure of straightening machine |
| 11/17/2010 | CN201632543U Split type shaping mandrel |
| 11/17/2010 | CN201632519U Support rotating shaft |
| 11/17/2010 | CN201632518U Conduit diameter calibrating clamp |
| 11/17/2010 | CN201632517U H-steel straightener |
| 11/17/2010 | CN201632515U Reshaping mechanism |
| 11/10/2010 | CN201625737U Automatic feeding and discharging system of straightener |
| 11/10/2010 | CN201625690U Butt-welding elbow back-arc reshaping machine |
| 11/10/2010 | CN201625689U Locking device of multi-diagonal-roll straightening machine |
| 11/10/2010 | CN201625688U Movable supporting framework of movable gantry type sectional bar straightener |
| 11/10/2010 | CN201625687U Universal roundness corrector |
| 11/10/2010 | CN101879560A Righting and centering mechanism of H-shaped steel web |
| 11/03/2010 | CN201618763U Pin corrector for seamless LED (light-emitting diode) display screen |
| 11/03/2010 | CN201618762U Porous-type long and thin metal material straightener |
| 11/03/2010 | CN201618761U Axial adjusting device of straightener top roll |
| 11/03/2010 | CN201618760U Automatic circle calibration machine |
| 11/03/2010 | CN201618759U Fixture for manufacturing left support and right support of automobile instrument panel transverse beam |
| 11/03/2010 | CN201618720U Three-roller straightening machine |
| 11/03/2010 | CN101135557B Method for measuring shape of tube body, tube body checking method and manufacture method, tube body |
| 10/27/2010 | CN201613279U 用于管道焊接的管口整形机 Spout for plastic pipe welding machine |
| 10/27/2010 | CN201613278U 一种冷弯管正圆器 Zhengyuan, a cold bending device |
| 10/20/2010 | CN201609725U 一种多斜辊矫直机四柱套滑座 A multi-roll leveler ramp poster sleeve slide |
| 10/20/2010 | CN201609724U 全自动气门加热盘杆校直机 Automatic valve stem heating plate straightening machine |
| 10/20/2010 | CN101862767A Automation straightener for drilling tool |
| 10/20/2010 | CN101559450B Hydraulic device for adjusting roundness of cylinder |
| 10/13/2010 | EP2117742B1 Method for producing flat tubes and rolling mill for carrying out the method. |
| 10/13/2010 | CN201605503U 可调节轨道整形机 Adjustable track shaping machine |
| 10/13/2010 | CN201603778U 一种杆件自动检测校直机 Automatic detection to a bar straightening machine |
| 10/07/2010 | DE102009005935B4 Verfahren zum Kalibrieren einer Pleuelstangenanordnung und Pleuelstangenanordnung A method of calibrating a connecting rod assembly and connecting rod assembly |
| 10/06/2010 | CN201596694U 一种校形夹具 One kind of school-shaped clamp |
| 10/06/2010 | CN201596693U 一种闸门丝杠矫直装置 A screw gate straightening device |
| 09/30/2010 | US20100243663 Container End Closure |
| 09/29/2010 | CN201592424U Spanner with rounding device |
| 09/29/2010 | CN101844168A Roll-exchanging device of tube bar straightening machine |
| 09/29/2010 | CN101376136B Method for producing martensitic stainless steel seamless steel pipe |
| 09/29/2010 | CN101376134B Method for producing martensitic stainless steel seamless steel pipe |
| 09/22/2010 | CN201586684U Miniature handle and shaft straightening machine |
| 09/22/2010 | CN201586683U Miniature part straightening machine |
| 09/22/2010 | CN201586682U Automatic straightening production line for T-shaped guide rails |
| 09/22/2010 | CN101837403A Alignment pressure head |
| 09/22/2010 | CN101837390A Tube body straightening supporting revolving shaft |
| 09/22/2010 | CN101837389A Portable and all-dimensional continuous oil pipe straightening machine |
| 09/22/2010 | CN101837386A Method for manufacturing titanium alloy thick-wall pipe |
| 09/16/2010 | US20100229614 Method to straighten metallic filament |
| 09/15/2010 | CN201583445U Air-valve bending testing machine |
| 09/15/2010 | CN201579314U Slender shaft workpiece detection and alignment device |
| 09/15/2010 | CN201579313U Numerical-control automatic valve disc-stem straightener |
| 09/15/2010 | CN201579312U Left-right arranged tube and bar pinch roll device |
| 09/15/2010 | CN201579311U Copper pipe straightener |
| 09/15/2010 | CN101830075A Jack hydraulic press |
| 09/15/2010 | CN101829708A Manually rotating-pressing type steel tube straightener |
| 09/09/2010 | DE102007043891B4 Kontaktrollenvorrichtung und Oberflächenbehandlungsanlage für Metallstrang Contact roller assembly and finishing plant for metal casting |
| 09/08/2010 | CN201572824U Aluminium guide rod aligning machine |
| 09/08/2010 | CN201572823U Rapid straightening device based on a plurality of straightening heads |
| 09/08/2010 | CN201572822U Screw-type straightening machine of slender rod tap bolt |
| 09/08/2010 | CN201572821U Manual core reshaper |
| 09/08/2010 | CN101823088A Overlarge-diameter high-precision ten-roller tube straightener |
| 09/08/2010 | CN101392318B Method for spring sizing by using metal transition superplasticity |
| 09/07/2010 | US7788960 Multi-walled tube and method of manufacture |
| 09/01/2010 | CN201565529U Cold-drawing steel pipe straightener guide tube protective sleeve |
| 09/01/2010 | CN201565519U Roll changing track for roll straightening machine |
| 09/01/2010 | CN201565502U Air valve cap and stem straightening mechanism |
| 09/01/2010 | CN201565501U Upper straightening ring of rail straightener |
| 09/01/2010 | CN201565500U Lower straightening ring of rail-straightening machine |
| 09/01/2010 | CN101817036A Guide rail shape correcting device |
| 09/01/2010 | CN101342551B Sucker rod flattener |
| 08/26/2010 | DE202010007546U1 Pneumatische Richtvorrichtung Pneumatic straightening device |
| 08/25/2010 | EP2221122A1 Device, system and method for removal of dents in installed pipes |
| 08/25/2010 | CN201558888U Frame adjusting device |
| 08/25/2010 | CN201558887U Centralizing mechanism of correcting machine |
| 08/20/2010 | CA2692908A1 An apparatus, system and method for removing dents in pipes in the mounted state |
| 08/18/2010 | CN201552213U Straightener for suspended conveying chain track |
| 08/18/2010 | CN201552212U Cylinder roundness correcting and keeping device |
| 08/18/2010 | CN201552211U Guide roller device for straightener |
| 08/18/2010 | CN201552210U Horizontal pressure straightening machine |
| 08/18/2010 | CN101421059B Method for correcting pipe and method for producing pipe by using that correction method |
| 08/11/2010 | CN201543688U Pipe end ovality correcting device for large-caliber longitudinal welded pipe |
| 08/11/2010 | CN201543687U Straightening ring for eliminating straightening trace of waist part in straightening process of heavy rail |
| 08/11/2010 | CN201543686U Two-way horizontal type pounding machine special for wrapped bearing bush |
| 08/11/2010 | CN101800300A Automatic lug shaping mold |
| 08/11/2010 | CN101797613A Feeding process and feeding device for straightening machine |
| 08/05/2010 | WO2010004037A3 Method for straightening parts in a roller straightening machine |
| 08/04/2010 | CN201537663U Trumpet mouthpiece pipe trimmer |
| 08/04/2010 | CN201537641U Coiler alignment machine |
| 08/04/2010 | CN101791641A Method of calibrating a connecting rod arrangement and connecting rod arrangement |
| 08/04/2010 | CN101791640A Method for distributing balancing and locking cylinders for large multi-cross roll straightening machine |
| 08/04/2010 | CN101791639A Section steel straightening roller device and assembly method |
| 07/29/2010 | DE102009005935A1 Connecting rod arrangement calibrating method for e.g. household refrigerator, involves carrying out controlled energy application in upper surface region of connecting rod, and connecting piston with connecting rod arrangement |
| 07/28/2010 | CN101786116A Method for adjusting roll axial direction of multi-diagonal roll straightener |
| 07/28/2010 | CN101786115A Hammer type pipe fitting electromagnetically shaping technology |
| 07/28/2010 | CN101108400B Support rolling wheel composite structure of flattener |
| 07/22/2010 | US20100181078 Mobile Coiled Tubing Straightening Tool |
| 07/22/2010 | US20100180659 Method for Marking a Socket |
| 07/21/2010 | CN201532378U Petroleum drilling tool inspection line |