| Patents for B21D 1 - Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling (4,692) |
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| 01/16/2013 | CN102172674B Small-roller-diameter multi-roller straightening machine |
| 01/16/2013 | CN102069109B Correction device and correction method for inner ring of engine crankcase |
| 01/13/2013 | CA2782445A1 Method for producing a profile from a sheet-metal strip |
| 01/09/2013 | CN202658186U Reel pipe mechanism of ship building no-track back burning machine |
| 01/09/2013 | CN202655900U Full-automatic numerical control steel-plate decoiling and flattening device |
| 01/09/2013 | CN202655400U Fully-automatic workpiece alignment device |
| 01/09/2013 | CN202655391U Metal roll material leveling device |
| 01/09/2013 | CN202655390U Tool for repairing metal plate depression |
| 01/09/2013 | CN202655389U Novel straightening device for cold rolled degreased line |
| 01/09/2013 | CN102861790A Automobile depression flattening device controlled by hydraulic servo system |
| 01/09/2013 | CN102861789A Special jig for leveling die-casting thin wall plate part |
| 01/09/2013 | CN102861788A Hot shaping method of large-specification titanium plate |
| 01/09/2013 | CN101391273B Straightening machine of inner-tension deformation section steel |
| 01/09/2013 | CN101045245B One-piece calibration method for crankcase tempering, device for implementing the method |
| 01/02/2013 | CN202638971U Leveling device for flat-bulb steel |
| 01/02/2013 | CN202638970U Environment-friendly iron bucket repairing and reshaping device |
| 01/02/2013 | CN202638969U Supporting cylinder machine |
| 01/02/2013 | CN202638968U Hydraulic shoe correcting machine |
| 01/02/2013 | CN202638967U Lift-out roller device of seven-roller straightening machine |
| 01/02/2013 | CN202638966U Hydraulic servo screwdown for fine leveler |
| 01/02/2013 | CN202638965U Bearing roller for straightening machine |
| 01/02/2013 | CN202638964U Straightener for plate |
| 01/02/2013 | CN202638963U Perspective apparatus of straightening machine |
| 01/02/2013 | CN102858476A Freely rotating magnetic tip with surface trace for dent removal rod |
| 01/02/2013 | CN102848053A Assembly and flame process for trunk bulkhead deck |
| 01/02/2013 | CN102847753A Seam pressing machine |
| 01/02/2013 | CN102847752A Press-fit device |
| 01/02/2013 | CN101312797B Method for levelling a strip-like or sheet flat product in a levelling machine with overlapping rollers and levelling installation thereof |
| 01/01/2013 | US8341995 Method for making can bodies having axial ribs and step shoulder bottoms |
| 12/26/2012 | CN202621635U Roller-type straightener and straightening roller unit for the same |
| 12/26/2012 | CN202621634U Roll set structure of leveler |
| 12/26/2012 | CN202621633U Brake tendon leveler |
| 12/26/2012 | CN202621632U Flattening machine for aluminum products |
| 12/26/2012 | CN202621588U Stainless steel plate belt scale breaking machine |
| 12/26/2012 | CN101920281B Five-roll metal plate and strip straightening machine |
| 12/25/2012 | US8336354 Interchangeable cartridge system for a straightening machine and method for operating said straightening machine |
| 12/19/2012 | CN202606579U Automobile body deformation correcting unit controlled by hydraulic servo system |
| 12/19/2012 | CN202606578U Valve structure used for environment-friendly shaping of iron bucket |
| 12/19/2012 | CN202606577U Device preventing hot straightening machine side roller from sticking steel |
| 12/19/2012 | CN202606576U Adjustable roll bending precision leveling machine |
| 12/19/2012 | CN202606575U Novel transmission structure for working roll of temper mill |
| 12/19/2012 | CN202606574U Quadruple type leveler |
| 12/19/2012 | CN202606573U Sextuple type leveler |
| 12/19/2012 | CN202606572U Strip steel curve correction device at outlet of brushing device |
| 12/19/2012 | CN202606571U Shaping device of special supporting arm for nuclear bridge |
| 12/19/2012 | CN102825429A Automatic punching machine for steel strip |
| 12/19/2012 | CN102825107A Reshaping device for barrels with special-shaped openings |
| 12/19/2012 | CN102825106A Stainless steel strip straightening machine |
| 12/19/2012 | CN102825105A Heavy-duty driving device for sheet flattening machines |
| 12/19/2012 | CN102825104A Lever type needle plate corrector |
| 12/19/2012 | CN102825103A Special shaping peculiar tool |
| 12/19/2012 | CN102825071A Rotary roll synchronizer for levelling machine |
| 12/12/2012 | CN202595190U Leveling tool for heat treatment |
| 12/12/2012 | CN202592770U Gantry type hydraulic machine for multi-point synchronous leveling of steel plate |
| 12/12/2012 | CN202591934U Multifunctional hoe handle installer |
| 12/12/2012 | CN202591454U Surrounding fixing device for iron drum shaping |
| 12/12/2012 | CN202591296U Double-lift car-body correction machine with internally-installed control device |
| 12/12/2012 | CN202591295U Fixing device for iron bucket shaping |
| 12/12/2012 | CN202591294U Iron drum reshaping fixing bracket with groove and disk combined |
| 12/12/2012 | CN202591293U Iron drum reshaping air valve structure facilitating fixation |
| 12/12/2012 | CN202591292U Double semi-circle type iron drum shaping fixing device |
| 12/12/2012 | CN202591291U Encircling iron bucket shaping and fixing device with pressing-down disk |
| 12/12/2012 | CN202591290U Flattening sliding block in seven-roller flattening machine |
| 12/12/2012 | CN202591289U Metal sheet flattening device |
| 12/12/2012 | CN202591288U Heating sheet correction tool |
| 12/12/2012 | CN202591287U Light-emitting diode (LED) display back panel leveling tool |
| 12/12/2012 | CN202591216U Leveler |
| 12/12/2012 | CN102814359A Integrated chip lead frame leveling device |
| 12/12/2012 | CN102814358A Injection-suction type double-nozzle baking gun |
| 12/12/2012 | CN102814356A Device for hot-rolled strip steel production line to achieve uncoiling of steel coils in small batches |
| 12/06/2012 | US20120304434 Method for removal of dents from wind turbine masts |
| 12/05/2012 | EP2529848A1 Roller leveler |
| 12/05/2012 | CN202570870U Girder calibrator for automobile repair |
| 12/05/2012 | CN202570869U Correction fixture for rear door of self-discharging car |
| 12/05/2012 | CN202570868U Shaping jig for real panel of brake shoe of commercial vehicle |
| 12/05/2012 | CN202570867U Shaping jig for disc brake bracket of commercial vehicle |
| 12/05/2012 | CN202570866U Oil bucket repairing machine |
| 12/05/2012 | CN202570865U Indentation restoration tool harmless to paint |
| 12/05/2012 | CN202570864U Withdrawal and straightening unit |
| 12/05/2012 | CN202570863U Piston ring clamping machine |
| 12/05/2012 | CN202570862U Movable hydraulic shape correction machine |
| 12/05/2012 | CN202570861U Panel shearing bend rectifying device of longitudinal shearing machine |
| 12/05/2012 | CN202570860U Short-row half car-body side-wall interior casing flanging and shaping copy |
| 12/05/2012 | CN202570859U Wheel flange calibrating wrench |
| 12/05/2012 | CN102806257A Device and method for annularly bending heat exchanger for refrigeration equipment |
| 12/05/2012 | CN102806250A Method for flatting stainless steel strips |
| 12/05/2012 | CN102179424B Flattening production process of stainless steel |
| 11/28/2012 | CN202555627U Bi-service lead-screw clamp for automobile bodywork correction machine |
| 11/28/2012 | CN202555626U Thin-plate flattening device |
| 11/28/2012 | CN202555625U Magnesium alloy blank plate flattening machine |
| 11/28/2012 | CN202555624U Plane shaping device for powder metallurgy product |
| 11/28/2012 | CN202555623U Hot work correction cushion block |
| 11/28/2012 | CN102794334A Diameter and shape precision control method of thin-walled cylinder and special tool thereof |
| 11/28/2012 | CN102794333A Roller leveler and processing device and processing method for metal plate using the same |
| 11/28/2012 | CN102794332A Turtle-back fault rear-mounted type improved concave-convex roller straightening machine for steel board |
| 11/28/2012 | CN102794331A Large thick metal expansion joint straight section shaping method and shaper |
| 11/21/2012 | CN202539348U Special-shaped rolled pipe forming device |
| 11/21/2012 | CN202539272U Improved bee barrel air inlet shaping device |
| 11/21/2012 | CN202539271U Metal fluorine bushing extruding bar |
| 11/21/2012 | CN202539270U Wavy guardrail plate straightening machine for roads |