| Patents for B28B 21 - Methods or machines specially adapted for the production of tubular articles (3,281) |
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| 04/04/2012 | CN202180530U 制作预应力钢筒混凝土管的两用立式钢模 Production of prestressed concrete cylinder pipe dual vertical steel |
| 04/04/2012 | CN202180529U End mould of pipe mould for reinforced concrete water drainage pipe |
| 04/04/2012 | CN202180528U 一种芯模振动制管机十字梁与立柱的连接装置 A connecting device mandrel pipe machine vibration cross beams and uprights |
| 04/04/2012 | CN202180527U Transmission mechanism of concreted drain pipe forming machine |
| 04/04/2012 | CN202180526U 一种悬辊机 One kind of hanging roller machine |
| 04/04/2012 | CN102401199A 混凝土输送管道及其制造方法 Concrete pipeline and its manufacturing method |
| 04/04/2012 | CN102398304A 成品桩接桩机构 Finished staking pile agency |
| 04/04/2012 | CN101806116B 利用二氧化碳制备的空心再生混凝土构件及制备方法 Use of hollow carbon dioxide produced concrete structures and preparation methods regeneration |
| 03/28/2012 | CN202174642U 一种钢筋定位固定架 A reinforcement positioning fixation |
| 03/28/2012 | CN202174641U 一种陶瓷内衬复合钢管固定罩 A ceramic lined composite steel pipe fixed hood |
| 03/28/2012 | CN202174640U 一种离心机 One kind of centrifuge |
| 03/28/2012 | CN102392441A Composite crack control prestressed concrete big tube pile and manufacturing method thereof |
| 03/28/2012 | CN102392440A High-toughness pipe pile and manufacturing method thereof |
| 03/28/2012 | CN102390083A Novel part assembly and method for stretching main steel bar in producing prestressed pipe pile |
| 03/27/2012 | US8142180 Forming wire |
| 03/22/2012 | US20120070526 Forming tool |
| 03/21/2012 | CN202169643U 一种混凝土方桩模具 Molds for concrete square piles |
| 03/21/2012 | CN102383425A Integrated concrete pile tip and manufacturing method thereof |
| 03/20/2012 | US8137505 System and process for throughdrying tissue products |
| 03/20/2012 | US8137499 Method for reinforcing a fibre composite component and a vacuum mat and arrangement for producing a reinforced fibre composite component |
| 03/20/2012 | US8137491 Composite material insert and method for the production thereof, and method for creating a sandwich structure comprising said insert |
| 03/15/2012 | US20120064188 Replication Tools and Related Fabrication Methods and Apparatus |
| 03/15/2012 | US20120061886 Molding apparatus and molding method |
| 03/15/2012 | US20120061388 Pipe and Pipe Joint Covering Apparatus |
| 03/14/2012 | CN102373702A Concrete circular pile and processing method thereof |
| 03/14/2012 | CN102371623A Spigot and socket type reinforced concrete pipe mould structure with adjustable pipe length |
| 03/14/2012 | CN101934555B Method for toughening ceramic layers at end parts of centrifugal self-propagating ceramic lining compound oil pipe |
| 03/08/2012 | US20120056358 Processes and systems for manufacturing spars and other hollow structures |
| 03/07/2012 | CN102366973A Vacuum chuck de-molding device for concrete tubular pile |
| 03/07/2012 | CN102366972A Cushion and correction device before demoulding concrete pipe pile |
| 03/07/2012 | CN102366971A Stretching system for concrete tubular pile |
| 03/07/2012 | CN102366970A Integral tension device for concrete tubular pile |
| 03/07/2012 | CN102366969A Feed system of concrete pipe pile |
| 02/29/2012 | CN102363324A Dry press forming device and forming method for porcelain sleeve blank |
| 02/29/2012 | CN101934554B Concrete hollow square pile centrifugal casting mold |
| 02/22/2012 | CN102359104A Square cylindrical reinforced tube pile and processing method thereof |
| 02/22/2012 | CN102359103A Square cylindrical pipe pile and processing method thereof |
| 02/22/2012 | CN102359102A Square cylindrical corrugated tube pile and processing method thereof |
| 02/21/2012 | US8118586 Portable conduit bending frame assembly and method of use thereof |
| 02/15/2012 | CN102356203A Wall element and method for producing same |
| 02/15/2012 | CN102350734A Full-automatic quantitative square-pile distributing system |
| 02/15/2012 | CN101798854B 利用二氧化碳制备的空心混凝土构件及制备方法 Use of hollow concrete structures and preparation methods of carbon dioxide produced |
| 02/08/2012 | CN102343626A Concrete square pile die |
| 02/08/2012 | CN102343625A Method for manufacturing anti-pull type prestressed concrete pipe pile |
| 02/08/2012 | CN102343624A Method for manufacturing high-bearing-capacity prestressed concrete pipe pile |
| 02/01/2012 | CN102337742A Prestressed composite superimposed large-diameter tube pile and manufacturing method thereof |
| 02/01/2012 | CN102337741A Square-prismatic tube pile and processing method thereof |
| 02/01/2012 | CN102337740A Square-prism-reinforced pipe pile and machining method thereof |
| 02/01/2012 | CN102335959A Preparation method of integral type house exhaust passage |
| 02/01/2012 | CN101870139B 一种薄壁细小空心型管的灌浆工艺 A small thin-walled hollow-tube filling technology |
| 01/26/2012 | WO2012009748A1 Manufacturing device and method for the casting of products |
| 01/25/2012 | CN202123567U Centrifugal automatic feeding equipment for cement pipe molding |
| 01/25/2012 | CN202123566U Processing equipment for cement pipe |
| 01/25/2012 | CN102328346A Method for manufacturing prestressed concrete pipe pile with positioning device |
| 01/25/2012 | CN102328345A Device and method for increasing vibration in preparation process of concrete structural member |
| 01/25/2012 | CN102328344A Method for manufacturing insulated anticorrosive prestressed concrete tubular pile |
| 01/18/2012 | CN202114802U Steel die for manufacturing bidirectional counter-perforated tubular pile |
| 01/18/2012 | CN102322556A Coke oven ground station pre-spraying pipeline with wear-resistant structure and method for forming pre-spraying pipeline |
| 01/11/2012 | CN202106468U Quickly opened/closed fastening piece for mold closing |
| 01/11/2012 | CN202106467U Steel mold for molding a concrete pile by a centrifuging method |
| 01/11/2012 | CN102310481A Extruding device for pipe making machine |
| 01/11/2012 | CN102310480A Radial extruding pipe making machine |
| 01/11/2012 | CN102310479A Bell end tray for pipe making machine |
| 01/11/2012 | CN102310478A Faucet disk for pipe making machine |
| 01/11/2012 | CN101733835B Pipe pile hopper with adjustable width |
| 01/11/2012 | CN101531534B Y2O3 and Al2O3 compound ceramic tube and preparation method thereof |
| 01/10/2012 | CA2731371C Concrete panel with fiber reinforced rebar |
| 01/04/2012 | EP2401447A1 Wall element and method for producing the element |
| 01/04/2012 | CN102303368A Hollow shaft of concrete drainage pipe forming suspended roller machine |
| 01/04/2012 | CN101863079B Method for manufacturing prestressed concrete tubular pile |
| 12/29/2011 | US20110318446 Method And An Apparatus For The Manufacture Of Concrete Pipes |
| 12/28/2011 | CN102294747A 制管机模具 Pipe machine mold |
| 12/28/2011 | CN102294746A 一种预应力钢筒混凝土保温管的制造方法 Manufacturing method of a prestressed concrete cylinder pipe insulation |
| 12/28/2011 | CN102294745A 管芯用免振自密实混凝土均料器 Die with vibro feeders are self-compacting concrete |
| 12/28/2011 | CN102294744A 一种预应力钢筒混凝土顶管的制造方法 Manufacturing method of a prestressed concrete cylinder pipe jacking |
| 12/22/2011 | WO2011158914A1 Extrusion-molding device and method for producing molded body using same |
| 12/22/2011 | US20110308709 Mandrel with integral heat pipe |
| 12/21/2011 | CN102285003A 防腐内衬钢筋混凝土管道的生产工艺 Production process of reinforced concrete pipe corrosion lining |
| 12/21/2011 | CN102285002A 桩体生产线混凝土振捣车 Pile of concrete vibrators car production line |
| 12/21/2011 | CN102284849A 大口径钢筋砼管模具拆卸方法 Large diameter reinforced concrete pipe mold removal methods |
| 12/21/2011 | CN101590664B 一种预应力钢筒管模 Prestressed steel bobbin mold |
| 12/14/2011 | CN102277869A 塞孔式减压排水管桩及其制备工艺 Drain plug hole decompression pile and preparation process |
| 12/14/2011 | CN102275221A 混凝土管桩成型模及混凝土管桩成型方法 Concrete Pipe Concrete Pipe molding and molding methods |
| 12/14/2011 | CN102275220A 一种混凝土排水管成形机的传动机构 Molding machine for concrete drain transmission |
| 12/14/2011 | CN102275219A 管桩自动化生产线 Piles automated production lines |
| 12/14/2011 | CN102275218A 一种合模或拆模装置及使用该装置进行合模或拆模的方法 One kind of mold or form removal device and use the device mold or form removal method |
| 12/14/2011 | CN101519295B 一种高性能环保混凝土及应用该混凝土制备管桩的方法 A high performance green concrete and the concrete pile preparation method application |
| 12/07/2011 | EP1590142B1 A method and an apparatus for the manufacture of concrete pipes |
| 12/07/2011 | CN202062505U 一种用于厨卫防火排气管道制作的模具 A kitchen exhaust duct fire for making molds |
| 12/07/2011 | CN202062504U 一种压簧式合模螺栓 One kind of spring-type clamping bolt |
| 12/07/2011 | CN202062503U 管片模具流转装置 Segment mold transfer device |
| 12/07/2011 | CN102267181A 一种钢筋混凝土排水管管模的端模 End of a reinforced concrete drainage pipe mold mold |
| 12/07/2011 | CN102267180A 一种免蒸压及免倒余浆的混凝土桩生产方法 Autoclave and pour over a pulp-free concrete piles production methods free |
| 12/07/2011 | CN102267179A 具备凸缘形挂线构件的混凝土桩用桩帽 With flange-shaped member is hung with concrete piles pile cap |
| 12/07/2011 | CN102267178A 制管机成型头 Tube Forming Machine Head |
| 12/07/2011 | CN102267177A Pccp管芯自密实混凝土成型方法 Pccp die molding method of self-compacting concrete |
| 12/07/2011 | CN101664961B 一种钢筋混凝土排水管的制造工艺 One kind of reinforced concrete pipes manufacturing process |
| 12/01/2011 | US20110290366 Forming the End Portions of Fibre Reinforced Thermoplastic Composite Tubes |
| 11/30/2011 | CN202053372U 炮泥抗渣侵蚀试样成型模具 Slag erosion stemming sample mold |
| 11/30/2011 | CN202053371U 一种混凝土离心机管形钢模 Centrifuge tube steel for concrete |