| 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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| 03/18/2010 | US20100068428 Method for Producing Hollow Shaft Base Bodies and Hollow Shaft Base Body Produced Thereby |
| 03/18/2010 | US20100065141 Tubing and method for manufacture |
| 03/17/2010 | EP2162249A1 Straightening machine having a straightening roller rapid-change system, and a method for rapidly changing straightening rollers of a straightening machine |
| 03/17/2010 | CN201423573Y Steel wire rod surface processing device |
| 03/17/2010 | CN201423399Y Bar material straightening wheel |
| 03/17/2010 | CN101670391A Butt welding elbow back-arc trimmer |
| 03/04/2010 | WO2008145355A8 Straightening machine having a straightening roller rapid-change system, and a method for rapidly changing straightening rollers of a straightening machine |
| 03/03/2010 | EP2158062A1 Turbine vane restoration system |
| 03/03/2010 | CN201415235Y Nylon straightening roller used for pipe straightening machine |
| 02/24/2010 | CN201410518Y Hydraulic railhead calibration machine |
| 02/24/2010 | CN101653795A Vertical hydraulic straightening machine |
| 02/24/2010 | CN101653794A Correcting eccentric shaft for correcting device |
| 02/17/2010 | CN201405530Y Mine vertical pressing machine |
| 02/17/2010 | CN201404973Y Fork truck gantry profile steel shaping device |
| 02/11/2010 | WO2009146838A8 Method for producing a large steel tube |
| 02/10/2010 | CN201399742Y Clamping device |
| 02/10/2010 | CN201399543Y Entrance guide device of novel pipe straightening machine |
| 02/10/2010 | CN101642785A Device for metal rod straightening |
| 02/10/2010 | CN100588476C Tension mechanism for profiled bar pressure straightening device |
| 02/04/2010 | US20100024508 Tubes and method and apparatus for producing tubes |
| 02/03/2010 | CN201394594Y Control device for pinch rollers of a straightener |
| 02/03/2010 | CN101637789A Resistance heat tension straightening device and straightening method thereof |
| 01/27/2010 | CN201389982Y Large-scale open type hydraulic press |
| 01/27/2010 | CN201389581Y Major-diameter flanging corrugated pipe sealing surface leveling device |
| 01/27/2010 | CN101633012A Hydraulic rolling straightener |
| 01/27/2010 | CN100584478C Hydraulic dynamic constant pressure straightening method |
| 01/21/2010 | US20100014818 Method and apparatus for manufacturing an optical cable and cable so manufactured |
| 01/21/2010 | US20100012306 Procedure For Manufacture Of A Tube For Conveyance Of A Fluid Of A Heat Exchanger, And Tube Obtained By Such Procedure |
| 01/20/2010 | CN201385063Y Prepreg reshaper for manufacturing steel seamless gas cylinder |
| 01/20/2010 | CN201385062Y Camshaft straightening machine |
| 01/19/2010 | US7647802 One-piece flexible tube connector and method of making the same |
| 01/19/2010 | CA2639122A1 Apparatus and method for forming straight tubes from coiled tubing |
| 01/13/2010 | CN201380247Y Loading and unloading mechanism of bar straightener |
| 01/13/2010 | CN201380219Y Mining section steel shaping machine |
| 01/13/2010 | CN201380218Y Steel pipe flattening machine with thickened end part |
| 01/13/2010 | CN201380217Y Straightening machine |
| 01/13/2010 | CN101626849A 2-phase stainless pipe manufacturing method, correction method, intensity adjusting method, and correction device operating method |
| 01/13/2010 | CN101623723A Horizontal type gas straighter |
| 01/13/2010 | CN101623722A Method and device for correcting bending deformation of main beam of container |
| 12/30/2009 | CN201371182Y Evaporating pipe calibrating device |
| 12/30/2009 | CN201371181Y Section bar clamp |
| 12/30/2009 | CN201371174Y Double-layered copper-brazed steel tube machine |
| 12/29/2009 | US7637135 Method for producing from a metal sheet a hollow profile which is longitudinally slotted and provided with several longitudinal segments having different cross sections |
| 12/23/2009 | CN201366457Y Vertical prestressed straightener with four upright posts |
| 12/23/2009 | CN201366456Y Device for aligning copper material |
| 12/23/2009 | CN201366455Y Numerical control hot straightening machine for ovalizing and warping of annular steel parts |
| 12/16/2009 | CN201361644Y Pipe mouth rounding device of heavy-caliber steel pipe |
| 12/16/2009 | CN201361643Y Pressure straightener with moving host machine |
| 12/16/2009 | CN201361642Y Device for automatically adjusting roundness and misalignment of hydraulic type penstock |
| 12/16/2009 | CN101602164A Rail-straightening machine |
| 12/10/2009 | WO2009146838A1 Method for producing a large steel tube |
| 12/10/2009 | US20090301156 Tubing straightener |
| 12/10/2009 | DE102008027807A1 Verfahren zum Herstellen von Stahlrohren A method of producing steel pipes |
| 12/10/2009 | CA2726132A1 Method for producing a large steel tube |
| 12/09/2009 | CN201357181Y Hydraulic system of straightening machine for straightening shaft components |
| 12/09/2009 | CN101600523A Method for producing flat tubes, rolling mill and heat exchanger comprising said flat tubes |
| 12/03/2009 | US20090293980 Metallic tubular structure |
| 12/03/2009 | DE102007050721B4 Richtmaschine zum Richten von Profilen Straightening machine for straightening profiles |
| 12/02/2009 | CN201353598Y Steel pipe straightening machine |
| 12/02/2009 | CN201353597Y Device for correcting ovality of circular steel tube |
| 11/25/2009 | CN101585061A T-type material straightener |
| 11/25/2009 | CN101585057A Adjusting device of straightener pressing wheel |
| 11/18/2009 | EP2117742A1 Method for producing flat tubes, rolling mill and heat exchanger comprising said flat tubes |
| 11/18/2009 | CN201346578Y Section steel straightener |
| 11/18/2009 | CN101579709A Profiled bar shaping device for gantry fork truck |
| 11/18/2009 | CN101579708A Method foe straightening pendulous railhead on site and hydraulic pressure railhead straightener thereof |
| 11/18/2009 | CN101579696A Method for improving steel rail straightening blind area |
| 11/17/2009 | US7617710 Roller leveller with variable center distance |
| 11/11/2009 | EP2116316A1 2-phase stainless pipe manufacturing method, correction method, intensity adjusting method, and correction device operating method |
| 11/11/2009 | CN201342453Y Die changing device of steel tube reeling straightening machine |
| 11/11/2009 | CN201342451Y Die of steel tube reeling straightening machine |
| 11/11/2009 | CN201342437Y Numerical control horizontal heavy steel flange straightener |
| 11/11/2009 | CN201342436Y Straightening machine |
| 10/29/2009 | US20090266931 Rolling door assembly and related methods |
| 10/28/2009 | CN201333471Y Balancing shaft straightener for heavy-duty cargo truck |
| 10/21/2009 | CN201329377Y Drilling tool hydraulic full automatic straightening machine |
| 10/21/2009 | CN201329376Y Automatic straightening device for normalizing tube |
| 10/21/2009 | CN101559451A Process and device for integrally repairing U-shaped steel arched beam rigid telescope support |
| 10/21/2009 | CN101559450A Hydraulic device for adjusting roundness of cylinder |
| 10/21/2009 | CN100551571C Metal wire aligning machine |
| 10/14/2009 | CN201324776Y Straightener with planetary inclined rollers and rotating hub |
| 10/14/2009 | CN201324775Y Spar straightening device with multiple rotating hubs rotating positively and reversely |
| 10/13/2009 | US7600406 Apparatus for rectifying round pipe and tubing |
| 10/07/2009 | EP2106305A1 Device for flame straightening |
| 10/07/2009 | CN201320569Y Straightener |
| 10/07/2009 | CN201320568Y Alignment operating lever |
| 09/30/2009 | EP2105218A1 Embossed pipe |
| 09/30/2009 | CN101543853A Non-driven on-line flat steel hot straightening machine |
| 09/29/2009 | US7594420 Wheel repair machine and method of use |
| 09/23/2009 | CN201313119Y Novel power transmission mechanism |
| 09/23/2009 | CN101537439A Preparation process of high-performance and high accuracy rods and bars of biological titanium alloy |
| 09/23/2009 | CN100542705C Full-automatic on-line method for straightening jackrod |
| 09/16/2009 | CN201308927Y Stretching support column for automobile beam correction platform |
| 09/15/2009 | US7587923 Method of making a tubular |
| 09/11/2009 | WO2009111509A2 Apparatus and method for processing coiled sheet-like material |
| 09/10/2009 | US20090224021 Apparatus and method for processing coiled sheet-like material |
| 09/09/2009 | CN201304429Y Straightening machine for camshaft |
| 09/09/2009 | CN101524725A Detecting system and detecting method for shape precision of steel tube straightening machine |
| 09/02/2009 | CN201300157Y Numerical-control straightening sorter for rotating shaft of series excited machine |
| 09/02/2009 | CN201300156Y Roundness corrector for steel casing |