| 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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| 06/11/2008 | EP1930118A1 Wheel reconditioning device |
| 06/11/2008 | CN101195201A Direct forming technique for special pipe special for electric power plant and shaping machine group |
| 06/11/2008 | CN101195135A Full-automatic on-line method for gag press straightening jackrod |
| 06/05/2008 | US20080127709 Dedent system |
| 06/05/2008 | US20080127699 Method and Apparatus for Forming a Changed Diameter Portion of a Workpiece |
| 06/04/2008 | CN201067782Y Feeding device for roller straightening machine |
| 06/04/2008 | CN201067781Y Section bar conveying appliance for lifting bridge piece |
| 06/04/2008 | CN101190444A Method for manufacturing super-long titanium or titanium alloy tube |
| 06/04/2008 | CN101190443A Method for manufacturing super-long titanium or titanium alloy tube |
| 06/04/2008 | CN100392153C Process of composite stainless steel / copper double metal rod |
| 06/04/2008 | CN100391638C Wire rod stretching pipe edge mould skin removing device and process |
| 05/29/2008 | US20080121008 Cylindorical rod and method for manufacturing the same |
| 05/15/2008 | US20080110229 Mechanical stress improvement process |
| 05/13/2008 | US7371293 Cold finished seamless steel tubes |
| 05/08/2008 | WO2008054221A1 Device for aligning anode stubs |
| 05/07/2008 | CN201055948Y Steel tube repairing device |
| 05/07/2008 | CN201055876Y Device for renovating building material of bracket |
| 05/07/2008 | CN201055875Y Waste and old anchor stock and steel bar ladder renovation machine |
| 05/07/2008 | CN101172290A Drum head device and application in metal adherence |
| 04/30/2008 | DE102007050721A1 Straightening machine for profiles, e.g. rolled beams or rails, has parallel straightening shafts above and below line of passage of profile which carry straightening disks and are mounted in bearings whose inclination can be adjusted |
| 04/30/2008 | DE102006049947A1 Meßverfahren zur Bestimmung des Verlaufs einer Kante eines Profils und Richtanlage für Metallprofile und Richtverfahren für Metallprofile Measuring methods for determining the course of an edge of a profile and straightening machine for metal profiles and straightening method for metal profiles |
| 04/23/2008 | CN201049362Y Box type extension bar steel structure sagged repairing device |
| 04/23/2008 | CN201049361Y Repairing device for metal pipe |
| 04/23/2008 | CN201049360Y Eight-claw type anode steel claw head bend random straightening device |
| 04/16/2008 | CN201046488Y Composite pipe truing device |
| 04/16/2008 | CN201046473Y Adjustable three-roller flattener |
| 04/09/2008 | EP1907150A2 Method and apparatus for forming a reinforcing bead in a container end closure |
| 04/09/2008 | CN201044929Y Aluminium section bar inspection machine having lifting and turning stretching functions |
| 04/01/2008 | CA2435085C Compression pipe repairing and reinforcing methods |
| 03/26/2008 | CN201040296Y Variable speed double helix high temperature oil pipe aligning device |
| 03/26/2008 | CN101151111A Automatic control method of roll type pipe correction machine |
| 03/25/2008 | US7347079 Wheel reconditioning device |
| 03/19/2008 | CN201036872Y Multi-functional leakage-proof tube shear |
| 03/12/2008 | EP1897637A1 Low-pressure production of cast article |
| 03/12/2008 | CN201033335Y Condenser checking and reshaping device |
| 03/06/2008 | WO2008025814A1 Straightening apparatus |
| 03/05/2008 | CN201030394Y Section straightener |
| 03/05/2008 | CN201030393Y Modified straightening machine |
| 03/05/2008 | CN201030387Y Shaping stretcher for ceramic lining compound oil pipe |
| 03/05/2008 | CN101135557A Method and apparatus for measuring shape of tube body |
| 02/21/2008 | US20080042431 Shoulder refacing indicator, and methods of using same |
| 02/21/2008 | DE202007016983U1 Richtpresse zum Richten von Langgut Straightening press for straightening long loads |
| 02/20/2008 | CN101125347A Straightening machine frame pretightening technology |
| 02/13/2008 | CN201020490Y Center sill leveling machine sidewise bending correcting device |
| 02/13/2008 | CN201020489Y Pumping unit polished rod straightener |
| 02/06/2008 | CN101116882A Pipe rod bar with major diameter double-roller unbender concave roller curve |
| 02/06/2008 | CN101116881A Hydraulic stretcher |
| 01/30/2008 | CN100364682C Method for leveling hot profiles |
| 01/23/2008 | CN201009229Y Wrench for rounding |
| 01/23/2008 | CN201008905Y Frame type section bar correcting machine |
| 01/23/2008 | CN101108400A Support rolling wheel composite structure of flattener |
| 01/16/2008 | CN201006551Y Ski straightening device |
| 01/09/2008 | CN101099980A Supporting roller split inner sleeve or split bearing assembled connecting device |
| 01/02/2008 | CN200999829Y Speed reducer special for rolling machine and leveling machine |
| 01/02/2008 | CN101096035A Pipe steel restoring derusting apparatus |
| 12/26/2007 | EP1870174A1 Automatic control method of roll type pipe correction machine |
| 12/26/2007 | CN200995237Y Calibrater of beam-pumping optical lever |
| 12/26/2007 | CN200995196Y Steel-pipe treater for scaffold |
| 12/20/2007 | DE202006012788U1 Wellenricht- und -härtemaschine Wellenricht- and -härtemaschine |
| 12/19/2007 | CN200991726Y Protecting railing column straightening machine |
| 12/12/2007 | CN200988062Y Steel pipe straightener |
| 12/12/2007 | CN200988061Y Simple link rod positioning mechanism |
| 12/12/2007 | CN101085457A Metal wire aligning machine |
| 12/12/2007 | CN101085456A Double roll type cylinder processor |
| 12/06/2007 | WO2007137762A1 Method of machining the bearing seats of the main and rod bearings of crankshafts |
| 12/05/2007 | CN200987109Y Electric machine rotor hollow conductor bending 90 degree device |
| 12/05/2007 | CN200984613Y Three-machine-integrated precise material rack straightening feeding machine |
| 12/05/2007 | CN200984599Y Incline angle adjusting apparatus of straightening roller |
| 12/05/2007 | CN200984598Y Floating side-compressing tensing device |
| 12/05/2007 | CN101081414A Leveling machine |
| 11/29/2007 | WO2007092404A3 Work roll scraper for roller levelers |
| 11/29/2007 | US20070271986 Method and device for making at least partly profiled tubes |
| 11/28/2007 | EP1858658A2 Device for non-cutting dressing vehicle rims for car, motor lorry, motorcycle or the like wheels and a method for dressing said rims |
| 11/28/2007 | CN101077558A Method for producing super large caliber seamless steel pipe |
| 11/28/2007 | CN101077511A A plurality of roller build-up curve roller type steel tube flattening machine |
| 11/21/2007 | CN200977534Y Heat-treatment bearing race shaping peak |
| 11/14/2007 | EP1558410B1 Device for checking and regulating wire wheels |
| 11/14/2007 | CN200976107Y Intelligent working piece rectifying system |
| 11/14/2007 | CN200974089Y Wheelchair crossed pipe fittings correcting device |
| 11/14/2007 | CN200974088Y Tube drawing machine |
| 11/14/2007 | CN200974087Y Round shaping device of the tube |
| 11/14/2007 | CN200974086Y Tools for the correcting and assembling of gas turbine static vane loop |
| 11/14/2007 | CN101069906A Metal tube shaping apparatus |
| 11/14/2007 | CN101069905A Metal tube shaping machine |
| 11/14/2007 | CN101069904A Straightening method for use while expanding steel pipe |
| 11/14/2007 | CN100348342C Large-scale digit-controlled hydraulic pressure straightener main frame |
| 11/07/2007 | CN200970605Y Multifunction circle making device |
| 11/07/2007 | CN200970602Y Creep aging shape corrector |
| 10/31/2007 | DE102006032829B3 Device for arranging or deforming shaft workpieces, comprises a lifting device, which is propelled by impact plunger on work piece, two supports that are supported between the workpiece, and measuring device coupled with a force sensor |
| 10/31/2007 | CN200967069Y Section steel correcting device |
| 10/31/2007 | CN200967068Y On-line roller grinding device of straightener |
| 10/25/2007 | WO2007119817A1 Method for correcting pipe and method for producing pipe by using that correction method |
| 10/25/2007 | US20070245798 Integral Axle Housing for Vehicle and Method of Manufacture the Same |
| 10/25/2007 | US20070245792 Integrally formed flanged metal pipe and method of manufacturing thereof |
| 10/24/2007 | CN200963793Y Expander for pipe |
| 10/24/2007 | CN200963645Y Anode steel paw leveling mechanism |
| 10/11/2007 | WO2007114176A1 Metal tube end correcting apparatus and metal tube end correcting method |
| 10/11/2007 | DE102006010040B3 Richtmaschine Straightening Machine |
| 10/10/2007 | CN200957434Y Structural-section step-up flattener |
| 10/03/2007 | CN101045245A One-piece calibration method for crankcase tempering, device for implementing the method |