| Patents for B28B 21 - Methods or machines specially adapted for the production of tubular articles (3,281) |
|---|
| 02/19/2014 | CN203438383U Multi-purpose overhang roll mold |
| 02/19/2014 | CN203438382U Die used for manufacturing RH total immersion pipe |
| 02/19/2014 | CN203438381U Automatic door frame of overhang roll machine |
| 02/19/2014 | CN203438380U High-efficiency tubular pile residual slurry barrel |
| 02/19/2014 | CN103586976A Integrated tapered concrete rod outer mold with interlayer |
| 02/19/2014 | CN103586975A Steel reinforcement cage sleeving device suitable for ocean pipeline balance weight production line |
| 02/12/2014 | CN203427164U Flue mold |
| 02/12/2014 | CN103582548A Method and system for forming a support structure |
| 02/12/2014 | CN103568117A Cement sewer pipe manufacturing mold |
| 02/12/2014 | CN103568116A Vertical vibrating die for armor pipes |
| 02/12/2014 | CN103568115A Hollow-wall enamel and glass pipe with several times of shockproof and bending-resistant performances and capable of sawing, drilling and replacing steel pipe |
| 02/12/2014 | CN102744781B Production method and die device for dual-layer draining pipeline |
| 02/05/2014 | CN103557378A High-stiffness composite tube formed through fixed length winding and manufacturing method thereof |
| 02/05/2014 | CN103556624A Connecting sleeve, prefabricated part comprising same as well as production method and connecting method thereof |
| 02/05/2014 | CN103552151A High-precision steel mold of reinforced concrete pipes and manufacture method of high-precision steel mold |
| 02/05/2014 | CN103552150A Prestress combined support pile steel mould structure |
| 01/29/2014 | CN103538147A Special-shaped prestress combined support pile steel mold |
| 01/29/2014 | CN103538146A Mold cleaning device |
| 01/29/2014 | CN103538145A Long-tube-section precast concrete pile construction method |
| 01/29/2014 | CN103538144A Eight-hole cement pipe block manufacturing technology |
| 01/29/2014 | CN102744782B Prefabricated smoke exhaust pipeline forming machine |
| 01/29/2014 | CN102490265B Spiral pile toe pyramid spin molding production line |
| 01/28/2014 | US8636868 Method for manufacturing laminated board, and laminated board |
| 01/22/2014 | CN203401589U Support pile stretching-drawing device |
| 01/22/2014 | CN203401588U Stretching-drawing driving mechanism used for support pile stretching-drawing device |
| 01/22/2014 | CN103522411A Concrete drain pipe production device |
| 01/22/2014 | CN103522410A Novel mandrel pipe manufacturing device and mandrel pipe manufacturing method using same |
| 01/22/2014 | CN103522409A Concrete pipe making device |
| 01/15/2014 | CN203391093U Automatic opening-closing type segment mould |
| 01/15/2014 | CN203391092U Ring width adjuster of segment mold |
| 01/15/2014 | CN103507156A Vertical type shake steel mold of PCCPL |
| 01/15/2014 | CN103507155A Triple-purpose bottom tray for core mould vibration |
| 01/08/2014 | CN203381039U Dustproof device of segment mould horizontal moving mechanism |
| 01/08/2014 | CN103496039A Inner sleeve type high-quality core model tube manufacturing device |
| 01/08/2014 | CN103072202B Pile toe maker convenient to use |
| 01/07/2014 | US8623167 Substrate sealing apparatus and method of sealing substrate using the same |
| 01/03/2014 | WO2014003587A1 A method for manufacturing of ceramic electro-insulating pipes |
| 01/01/2014 | EP2679363A1 A method for manufacturing of ceramic electro-insulating pipes |
| 01/01/2014 | CN203373056U Vertical shaft lifting limiting device of vertical type extrusion cement pipe making machine |
| 01/01/2014 | CN203371648U Pressure head start position limiting device of vertical type extrusion cement pipe making machine |
| 01/01/2014 | CN203371647U Bottom mouth tray of vertical type extrusion cement pipe making machine |
| 01/01/2014 | CN203371646U Vertical type extrusion cement pipe making machine |
| 01/01/2014 | CN103481365A Rounding unit for feeding of concrete pipe piles |
| 01/01/2014 | CN103481364A Preparation method of high-intensity thin-wall square pile |
| 01/01/2014 | CN103481363A Production process of concrete pipe pile |
| 12/31/2013 | US8616869 In-mold labeling apparatus and method |
| 12/25/2013 | CN203357661U Socket vertical type composite forming core pipe die |
| 12/25/2013 | CN203357660U Flue pouring machine |
| 12/25/2013 | CN102490263B Pipe joint production method for concrete pipe piles with long pipe joints |
| 12/18/2013 | CN203344175U Spliced pile connecting device |
| 12/18/2013 | CN203344174U Anti-explosion paper form of concrete column |
| 12/18/2013 | CN103448142A Supporting pile tensioning device |
| 12/11/2013 | CN103434020A Production method of non-residual slurry non-autoclaved prestressed concrete pipe pile |
| 12/11/2013 | CN103434019A Mud composite paper bobbin machine and mud composite bobbin production method |
| 12/04/2013 | CN203317539U Efficient centrifugalizing device for processing electric power towers |
| 12/04/2013 | CN203317520U Internal thread machining equipment for prestressed reinforced concrete hollow pile |
| 12/03/2013 | US8598553 Methods for manufacturing three-dimensional devices and devices created thereby |
| 11/27/2013 | CN103406990A Preparation method of assembly type precast concrete member |
| 11/21/2013 | WO2013173030A1 Concrete roller head |
| 11/19/2013 | US8585939 Method for preparing sintered annular nuclear fuel pellet |
| 11/13/2013 | CN203282600U Bow piece type extrusion roller supporting and feeding mechanism |
| 11/13/2013 | CN103386709A Shakeproof lift-preventing anti-bending preformed pile and manufacturing process of preformed pile |
| 11/13/2013 | CN103086675B Prestress corrosion preventing tubular pile used in coastal special geological conditions as well as manufacturing method thereof |
| 11/07/2013 | WO2013166242A1 Composite pallets for concrete pipe |
| 11/06/2013 | CN203266911U Light and reliable cement flue machine |
| 11/06/2013 | CN203266910U Quick mold-closing device |
| 11/06/2013 | CN203266909U Tensioning machine with constant pressure self-control device |
| 11/06/2013 | CN102490264B Forming machine for reinforced concrete precast screw pile |
| 10/30/2013 | CN203256739U Prestressed concrete hollow square pile and molding die thereof |
| 10/30/2013 | CN203256738U Square hollow prestressed concrete pile and forming die thereof |
| 10/29/2013 | US8568131 Horizontal molding method and apparatus of interior material of vehicle |
| 10/23/2013 | CN203245989U Processing device for H-shaped supporting pile |
| 10/23/2013 | CN203245967U Double hydraulic-type coating trolley for concrete counter weight of marine pipeline |
| 10/23/2013 | CN103362122A High-bearing-capacity sand filling pipe pile with pile joints and manufacturing and construction method of pile |
| 10/23/2013 | CN103358398A Method for producing high-strength pipe pile |
| 10/23/2013 | CN103358397A Method for producing high strength concrete pipe pile without autoclave |
| 10/23/2013 | CN103358396A Cement guiding and leaking pipe and producing method thereof |
| 10/22/2013 | US8562333 Rotational molding machine and method |
| 10/16/2013 | CN203236588U Vertical centrifugal forming machine |
| 10/16/2013 | CN103350452A Reuse method of circular pipe pile steel die and pipe pile manufactured with method |
| 10/16/2013 | CN102490266B Method for preparing pre-tensioned prestressing concrete pile connected with basic bearing platform in non-welding mode |
| 10/16/2013 | CN102328345B Device and method for increasing vibration in preparation process of concrete structural member |
| 10/01/2013 | US8544268 Engine assembly including turbocharger |
| 09/25/2013 | CN203210515U Tensioning device for prestressed reinforced concrete electric pole with large bending moment |
| 09/25/2013 | CN103317597A Vertical extrusion cement pipemaking machine |
| 09/25/2013 | CN103317596A Method for manufacturing prestressed centrifugal anti-corrosion concrete hollow square piles through pre-tensioning method |
| 09/18/2013 | CN203198052U One-step isostatic pressing forming die for stepped inner wall of alumina ceramic tube |
| 09/18/2013 | CN203198051U Internal mold structure of internally circular and externally square pipeline forming machine |
| 09/18/2013 | CN103302743A Centrifugal process for improving inner wall strength of pipe pile |
| 09/18/2013 | CN103302742A Vertical centrifugal forming machine |
| 09/18/2013 | CN102995629B Precast reinforced concrete square pile and manufacturing method thereof |
| 09/18/2013 | CN102371623B Spigot and socket type reinforced concrete pipe mould structure with adjustable pipe length |
| 09/11/2013 | CN203185488U Double-layered steel mould for manufacturing bamboo-joint-shaped prestressed concrete pipe pile |
| 09/11/2013 | CN103290996A High-strength aluminum alloy square tube beam and manufacturing method thereof |
| 09/11/2013 | CN103286845A Double-inclined hydraulic type coating trolley system of marine pipeline concrete balance weight |
| 09/05/2013 | DE102012203339A1 Method for manufacturing green element for fluid nozzle, involves pressing heated stamper in components, and partially melting and welding components in one of parting line and stamper adjacent area |
| 09/04/2013 | CN203171821U Flue automatic forming internal mold device |
| 09/04/2013 | CN203171820U Square flue forming machine internal die |
| 09/04/2013 | CN203171819U Environment-friendly pipe pile mould |
| 09/04/2013 | CN203171818U Novel thin-walled tube forming device |