专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2008031672A Excavation head of diametrically expanding excavator for constructing foundation pile 有权
标题翻译：挖掘机用于建造基础桩的挖掘机头
公开(公告)号：JP2008031672A
公开(公告)日：2008-02-14
申请号：JP2006204225
申请日：2006-07-27
申请人： Sumitomo Metal Ind Ltd , Takawaki Kiso Koji:Kk , Tokyo Seisakusho:Kk , 住友金属工業株式会社 , 株式会社東京製作所 , 株式会社高脇基礎工事
发明人： MATSUBARA HIROSHI , TANAKA HIROMASA , IKEDA MAKOTO , MORI NAOTO , KANEKO SHINJIRO , KASE YOSHIYUKI , NAGASAWA RYUTARO , SUGI TAKANAO
IPC分类号： E21B10/32 , E21B10/44
摘要： PROBLEM TO BE SOLVED: To provide an excavation head of an excavator for constructing a foundation pile, superior in excavation performance, capable of securing the quality of a foot protection expanded bulb, and capable of suppressing an earth removal quantity when pulling up, in the excavator in the form of gradually diametrically expanding an expanding blade by a spline structure.
SOLUTION: This excavation head 1 has a hollow driving shaft 2 and an excavation shaft 3 relatively movably stored in the axial direction inside its shaft. The expanding blade 4 joined by a pin to the driving shaft 2 side is expanded and contracted via a diametrically expanding plate 5 on the excavation shaft 3 side by using these relative movements. A spline is formed of a U-shaped key way 6 on the inner surface side of the driving shaft 2 and a key 7 on the outside surface side of the excavation shaft 3. The key way 6 is formed in a U shape out of a guide part 6a in the vertical direction, a first locking lock part 6b in which the key 7 is engaged in the circumferential direction when normally rotating the driving shaft 2 in the diametrically contracted state of the expanding blade 4, and a second locking lock part 6c in which the key 7 is engaged in the peripheral direction when normally rotating the driving shaft the a diametrically expanding state of the expanding blade 4.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种挖掘机的挖掘头，用于构造基桩，挖掘性能优越，能够确保脚保护膨胀球的质量，并且能够在拉起时抑制掉土量在挖掘机中以通过花键结构逐渐地扩张膨胀的叶片的形式。解决方案：该挖掘头1具有中空驱动轴2和挖掘轴3，其轴向相对可移动地存储在其轴内。通过使用这些相对运动，通过销与驱动轴2侧连接的膨胀叶片4通过径向扩张板5在挖掘轴3侧膨胀和收缩。在驱动轴2的内表面侧形成有U字键6的花键和挖掘轴3的外侧面上的键7.键槽6形成为U形，引导部分6a在垂直方向上的第一锁定锁定部分6b，当在扩张刀片4的直径收缩状态下正常旋转驱动轴2时，钥匙7沿圆周方向接合的第一锁定锁定部分6b和第二锁定锁定部分6c 其中当正常地旋转驱动轴时，钥匙7沿圆周方向啮合扩张刀片4的直径膨胀状态。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007032044A Supporting structure of foundation pile and steel pipe pile 审中-公开
标题翻译：支撑基础桩和钢管桩的结构
公开(公告)号：JP2007032044A
公开(公告)日：2007-02-08
申请号：JP2005215289
申请日：2005-07-26
申请人： Sumitomo Metal Ind Ltd , Takawaki Kiso Koji:Kk , 住友金属工業株式会社 , 株式会社高脇基礎工事
发明人： TANAKA HIROMASA , IKEDA MAKOTO , MATSUBARA HIROSHI , MORI NAOTO , KADOWAKI YOSHINORI , KANEKO SHINJIRO , KASE YOSHIYUKI , NAGASAWA RYUTARO
IPC分类号： E02D5/28 , E02D5/44 , E02D5/46 , E02D5/56
摘要： PROBLEM TO BE SOLVED: To provide a supporting structure of a foundation pile capable of ensuring the effective load transfer to a foot protection section from a pile body and to the bearing ground to exhibit high bearing power and having the excellence in workability at a low cost and a steel pipe pile. SOLUTION: The supporting structure of the foundation pile is constituted of the steel pipe pile having a circular or a spiral projection 2 on the outer circumference of the front end section and the foot protection section 11 formed in a bearing layer in the ground or an area including the bearing layer, and it fulfills the following conditions. [p/h=8 to 15], [H≤S1+S2], [Dp×2≥Dg≥Dp+2×h]. Here, p is the pitch of the projection 2, H is the overall height of the foot protection section 11, Dp is the external diameter of the steel pipe pile 1, and Dg is the external diameter of the foot protection section 11. S1 is the anchorage length of the circumferential projection, S2 is the distance from the front end of the steel pipe pile to the bottom of the foot protection section, and it fulfills the following conditions. [1.75×Dg-2.45×Dp≤S1≤1.75×Dg-1.75×Dp], and [Dp×2≥S2≥(Dg-Dp)/(2×tanβ)]. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种基础桩的支撑结构，其能够确保从桩体和支承地面到脚部保护部分的有效载荷传递以显示高的承载力并且具有优异的可操作性低成本和钢管桩。解决方案：基础桩的支撑结构由在前端部分的外圆周上具有圆形或螺旋形突起2的钢管桩和形成在地面中的轴承层中的脚保护部分11构成或包括承载层的区域，并且其满足以下条件。 [p / h = 8〜15]，[H≤S1+ S2]，[Dp×2≥Dg≥Dp+ 2×h]。这里，p是突起2的间距，H是脚保护部11的总高度，Dp是钢管桩1的外径，Dg是脚保护部11的外径。S1是圆周突起的锚固长度S2是从钢管桩的前端到脚部保护部的底部的距离，并且满足以下条件。 [1.75×Dg-2.45×Dp≤S1≤1.75×Dg-1.75×Dp]和[Dp×2≥S2≥（Dg-Dp）/（2×tanβ）]。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2008031673A Method for confirming expanding blade diametrically expanded state of excavator for constructing foundation pile 有权
标题翻译：用于确定膨胀叶片的方法用于构造基础桩的挖掘机的完全展开状态
公开(公告)号：JP2008031673A
公开(公告)日：2008-02-14
申请号：JP2006204226
申请日：2006-07-27
申请人： Sumitomo Metal Ind Ltd , Tokyo Seisakusho:Kk , 住友金属工業株式会社 , 株式会社東京製作所
发明人： MATSUBARA HIROSHI , TANAKA HIROMASA , IKEDA MAKOTO , MORI NAOTO , KANEKO SHINJIRO , KASE YOSHIYUKI , NAGASAWA RYUTARO , SUGI TAKANAO
IPC分类号： E21B10/32 , E02D5/44 , E02D7/00 , E02D13/06
摘要： PROBLEM TO BE SOLVED: To provide an expanding blade diametrically expanded state confirming method capable of easily and surely grasping the diametrically expanded state of an expanding blade in the ground without separately requiring a special device and a facility.
SOLUTION: An excavation head 1 has a hollow driving shaft 2 and an excavation shaft 3 relatively movably stored in the axial direction inside its shaft, and the expanding blade 4 is expanded and contracted by these relative movements. Resistance is reduced by forming a space 21 between upper-lower pipe ducts 22 and 23 for injecting cement milk in (a) to (c). When the expanding blade 4 starts to diametrically expand by reverse rotation as (d), the space 21 is eliminated by the contraction of the excavation head 1, and the resistance increases since the upper-lower pipe ducts 22 and 23 are dislocated. When normally rotating as (e) after the expansion, the upper-lower pipe ducts 22 and 23 are aligned, and the resistance is reduced. The diametrically expanding state of the expanding blade 4 can be confirmed by an increase/decrease in the pressure of such cement milk or the like.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种扩展刀片直径膨胀状态确认方法，其能够容易且可靠地掌握在地面上的扩张刀片的直径膨胀状态，而不需要专门的装置和设备。解决方案：挖掘头1具有中空驱动轴2和挖掘轴3，挖掘轴3在其轴内沿轴向相对可移动地存储，并且膨胀叶片4通过这些相对运动而膨胀和收缩。在（a）至（c）中，在上下管道22和23之间形成用于注入水泥浆的空间21来减小阻力。当膨胀叶片4（d）通过反向旋转开始径向膨胀时，通过挖掘头1的收缩来消除空间21，并且由于上下管道22和23脱位，阻力增加。当膨胀后（e）正常旋转时，上下管道22和23对准，电阻减小。膨胀叶片4的直径膨胀状态可以通过这种水泥浆等的压力的上升/下降来确认。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2012112158A Water permeable steel sheet pile and water permeable steel wall using the same 有权
标题翻译：水可渗透钢板和水渗透性钢板使用相同
公开(公告)号：JP2012112158A
公开(公告)日：2012-06-14
申请号：JP2010261183
申请日：2010-11-24
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： TANAKA HIROMASA , NISHIYAMA TERUKI , OTOSHI KAZUTAKA , NAGAO NAOYA , SAIMURA YUKIO
IPC分类号： E02D5/04 , E02B3/12
CPC分类号： Y02A10/14
摘要： PROBLEM TO BE SOLVED: To provide a steel wall having excellent water permeability as an earth retaining wall, a retaining wall, a seawall or a liquefaction countermeasure for the time of an earthquake, and a steel sheet pile therefor.SOLUTION: A retaining wall (steel wall) 500 is constructed by connecting and installing water permeable steel sheet pile 100 in the width direction. For the water permeable steel sheet pile 100, a hat-shaped steel sheet pile or the like is used for instance as a steel sheet pile base body 120, and a water permeable route part 130 is formed on the recessed part surface side of the steel sheet pile base body 120. On a prescribed position of the steel sheet pile base body 120, on a part at the lower part of the steel sheet pile base body 120 for instance, a communication hole 160 communicated to the water permeable route part 130 is provided. One or several more of communication holes 160 may be further provided on the longitudinal direction intermediate position of the steel sheet pile base body 120 when needed in terms of water permeability. On the retaining wall 500, the water permeable route part 130 of the steel sheet pile 100 is turned to the ground on the back surface side, and the communication hole 160 is positioned at a height near the ground surface of a front surface.
摘要翻译：要解决的问题：提供一种具有优异的透水性的钢墙作为地面挡土墙，挡土墙，海堤或地震时的液化对策以及钢板桩。解决方案：通过在水平方向上连接并安装透水钢板桩100而构成挡土墙（钢壁）500。对于透水性钢板桩100，例如使用帽状钢板桩等作为钢板桩基体120，并且在钢的凹部表面侧形成有透水性路径部130 在钢板桩基体120的规定位置，例如在钢板桩基体120的下部的与该透水路径部130连通的连通孔160的部分为提供。就需要而言，在透水性方面，可以在钢板桩基体120的纵向中间位置上进一步设置一个或多个连通孔160。在挡土墙500上，钢板桩100的透水路径部分130在后表面侧转向地面，并且连通孔160位于靠近前表面的地面的高度处。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2012102497A Steel wall and method for constructing the same 审中-公开
标题翻译：钢墙及其构造方法
公开(公告)号：JP2012102497A
公开(公告)日：2012-05-31
申请号：JP2010250509
申请日：2010-11-09
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NAGAO NAOYA , TANAKA HIROMASA
IPC分类号： E02D5/04
摘要： PROBLEM TO BE SOLVED: To provide an easy-to-construct steel wall in which a wall body constituted by coupling steel sheet piles capable of easily assuming high cut-off performance is reinforced with a steel pipe or H-shaped steel.SOLUTION: A wall body 4 is provided by coupling a plurality of hat steel sheet piles 1 together by means of a joint. Steel pipes 2 for reinforcing the wall body 4 are provided in the state of being juxtaposed along the longitudinal direction of the wall body 4. A spacing is provided between the wall body 4 and the steel pipe 2. A head of the wall body 4 and a head of the steel pipe 2 are coupled together by means of a coping 5. When the wall body 4 and the steel body 2 are constructed, the spacing, which prevents the hat steel sheet pile 1 of the wall body 4 and the steel pipe 2 from coming into contact with each other during construction, is set between the wall body 4 and the steel pipe 2.
摘要翻译：要解决的问题：提供一种易于构造的钢壁，其中通过钢管或H形钢增强了能够容易地承受高切断性能的钢板桩联接构成的壁体。解决方案：通过联接将多个帽子钢板桩1联接在一起来提供壁体4。沿着壁体4的长度方向并列设置用于加强壁体4的钢管2.在壁体4和钢管2之间设置间隔。壁体4的头部和钢管2的头部通过套管5联接在一起。当构成壁体4和钢体2时，防止壁体4的帽钢板桩1和钢管 2在施工期间相互接触，被设置在墙体4和钢管2之间。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2012007394A Embankment reinforcement structure 有权
标题翻译：工程加固结构
公开(公告)号：JP2012007394A
公开(公告)日：2012-01-12
申请号：JP2010144787
申请日：2010-06-25
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： OTOSHI KAZUTAKA , NAGAO NAOYA , TANAKA HIROMASA
IPC分类号： E02D17/18 , E02D5/04
摘要： PROBLEM TO BE SOLVED: To provide an embankment reinforcement structure, when an embankment is used for a dike, capable of making cost for steel member more reasonable than a conventional structure while maintaining such a function of the dike as to prevent water from flowing inside the dike when subjected to an action of an earthquake and a high flood water level as well as overflow due to concentrated heavy rain.SOLUTION: An embankment reinforcement structure of the present invention has at least one or more rows of an underground steel wall body 14 made of sheet piles 13 along a continuous embankment 1 within a range of an approximate levee crown 6 thereof. The underground steel wall body 14 is constructed with an embedded depth which is shallower than a bearing layer 9 and protects the underground steel wall body from being collapsed at times of an earthquake and overflow. Upper sections of the sheet piles 13 are fixed each other by welding or the like.
摘要翻译：要解决的问题：为了提供一种堤防加固结构，当堤防用于堤坝时，能够使钢构件的成本比常规结构更合理，同时保持堤坝的功能，以防止水当遇到地震和洪水泛滥水位高的地方时，堤坝内流动，以及由于集中的大雨而溢出。解决方案：本发明的堤坝加固结构在其近似堤顶6的范围内具有至少一行或多排沿着连续路堤1的板桩13制成的地下钢壁体14。地下钢墙体14的构造具有比轴承层9浅的嵌入深度，并且可以防止地下钢墙体在地震和溢流时被塌陷。纸张桩13的上部通过焊接等彼此固定。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2011214251A Structure for reinforcing embankment 有权
标题翻译：加强建筑结构
公开(公告)号：JP2011214251A
公开(公告)日：2011-10-27
申请号：JP2010081334
申请日：2010-03-31
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： OTOSHI KAZUTAKA , NAGAO NAOYA , KIDA HIROSHI , OKAMOTO MASANOBU , TANAKA HIROMASA , KAMEYAMA AKIHISA , NISHIYAMA TERUKI
IPC分类号： E02D17/18 , E02B3/10 , E02D5/04
CPC分类号： Y02A10/31
摘要： PROBLEM TO BE SOLVED: To prevent a concentration of damage in a boundary between a reinforced section provided with an underground steel-wall body and an unreinforced section during an earthquake or a flood by relieving a structural change in the boundary.SOLUTION: The boundary (boundary surface (a) of the countermeasure work) between a countermeasure section (b) with sheet piles in which the underground steel-wall bodies 2 are provided in two rows along the continuous direction of the embankment 1, and a section (c) without a countermeasure which is not provided with the underground steel-wall body 2 yet exists within the range of the almost upper surface 1a of the continuous embankment 1. The underground steel-wall body 2 is formed of a steel sheet pile wall which is constituted by coupling steel sheet piles 3 to each other. The rigidity of the steel sheet pile 3 of the underground steel-wall body 2 in a predetermined section (f) serving as an end of the underground steel-wall body 2 is set to become gradually lower toward the side of the section (c) without the countermeasure from the side of the countermeasure section (b) with the sheet piles. For example, the number of the type of the steel sheet pile 3 for use becomes smaller toward the side of the section (c) without the countermeasure from the side of the countermeasure section (b) with the sheet piles.
摘要翻译：要解决的问题：通过减轻边界的结构变化，防止在地震或洪水期间设置有地下钢墙体的增强部分与未加固部分之间的边界内的损伤集中。解决方案：边界（在对置措施部分（b）与沿着路堤1的连续方向设置有两排的地下钢壁体2的板桩之间的对策部分（b）和没有在连续路堤1的大致上表面1a的范围内，没有设置地下钢壁体2的对策。地下钢壁体2由钢板桩壁构成，该钢板桩壁由将钢板桩3彼此连接。作为地下钢壁体2的端部的规定区域（f）中的地下钢壁体2的钢板桩3的刚性被设定为朝向部分（c）的侧面逐渐变低，没有来自对策部分（b）侧面的对策与纸张桩。例如，没有来自对策部（b）侧的纸张堆的对策，使用的钢板桩3的种类的数量朝向部分（c）侧变小。

8. 发明专利

JP2011214250A Structure for reinforcing embankment 有权
标题翻译：加强建筑结构
公开(公告)号：JP2011214250A
公开(公告)日：2011-10-27
申请号：JP2010081319
申请日：2010-03-31
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： OTOSHI KAZUTAKA , NAGAO NAOYA , KIDA HIROSHI , OKAMOTO MASANOBU , TANAKA HIROMASA , KAMEYAMA AKIHISA , NISHIYAMA TERUKI
IPC分类号： E02D17/18 , E02B3/10 , E02D5/04
摘要： PROBLEM TO BE SOLVED: To provide a structure for reinforcing an embankment which inhibits an increase of a hydraulic gradient in a boundary between a reinforced section provided with an underground steel-wall body and an unreinforced section by adjusting the water permeability of the boundary.SOLUTION: The boundary between a countermeasure section (b) with sheet piles in which the underground steel-wall bodies 2 are provided in two rows along the continuous direction of the embankment 1, and a section (c) without a countermeasure which is not provided with the underground steel-wall body 2 yet exists within the range of the almost upper surface 1d of the continuous embankment 1. The water permeability of the underground steel wall body 2 in a predetermined section (f) so that an end of the underground steel-wall body 2 is set higher than that of the underground steel-wall body 2 outside the predetermined section (f). For example, the underground steel-wall body 2 of the predetermined section (f) is constructed by using the permeable sheet pile 3a. Additionally, the water permeability can also become gradually higher toward the side of the section (c) without the countermeasure from the side of the countermeasure section (b) with the sheet piles in the predetermined section (f).
摘要翻译：要解决的问题：提供一种用于加强堤坝的结构，其阻止通过调节边界的透水性而增加设置有地下钢墙体的增强部分与未加强部分之间的边界的液压梯度。：沿着路堤1的连续方向设置有两排地下钢壁体2的板桩的对策部（b）与没有设置有对策的部分（c）在连续路堤1的几乎上表面1d的范围内存在地下钢壁体2.在预定的部分（f）中地下钢制壁体2的透水性使得地下钢 - 壁体2被设定为高于预定部分（f）外的地下钢壁体2的壁体2。例如，通过使用可渗透片材堆3a构成预定部分（f）的地下钢壁体2。此外，没有来自对策部分（b）一侧的对策的水分渗透性也可以逐渐地朝向部分（c）的侧面逐渐增加，同时在预定部分（f）中纸张堆积。

9. 发明专利

JP2011214248A Structure for reinforcing embankment 有权
标题翻译：加强建筑结构
公开(公告)号：JP2011214248A
公开(公告)日：2011-10-27
申请号：JP2010081275
申请日：2010-03-31
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NAGAO NAOYA , OTOSHI KAZUTAKA , TANAKA HIROMASA , KAMEYAMA AKIHISA , NISHIYAMA TERUKI , KIDA HIROSHI , OKAMOTO MASANOBU
IPC分类号： E02D17/18 , E02B3/10 , E02D5/04
摘要： PROBLEM TO BE SOLVED: To provide a structure for reinforcing an embankment which enables the passage of a vehicle on the upper surface of the embankment after an earthquake or a flood while preventing the deformation of a steel wall body when reinforcing the embankment by using the double steel wall body.SOLUTION: The underground steel wall bodies 2 are provided in two rows along the continuous direction of the embankment 1 within the range of the almost upper surface 1c of the continuous embankment 1. A planar reinforcing material 7 with flexibility which is disposed in the ground is connected to each of the underground steel wall bodies 2. Each of the planar reinforcing material 7 is connected to only one of the underground steel wall bodies 2 without being laid between the underground steel wall bodies 2. The planar reinforcing material 7 is disposed between the two rows of underground steel wall bodies 2 so as to prevent the respective two rows of underground steel wall bodies 2 from being deformed to the outside. Since the planar reinforcing material 7 is not laid across the two rows of underground steel wall bodies 2, workability can be enhanced. Even if the upper surface subsides due to liquefaction during the earthquake, the planar reinforcing material 7 with flexibility is not protruded above so that an emergency vehicle can travel on the upper surface even after the subsidence.
摘要翻译：要解决的问题：提供一种用于加强路堤的结构，其能够在地震或洪水之后使车辆在路堤的上表面通过，同时防止钢墙体在通过使用双层加固堤坝时变形钢墙体。解决方案：在连续路堤1的几乎上表面1c的范围内，沿着路堤1的连续方向将地下钢制壁体2设置成两排。具有柔性的平面加强材料7被设置地面中的每一个都连接到每个地下钢壁体2.每个平面加强材料7仅连接到地下钢壁体2中的一个，而不被放置在地下钢壁体2之间。平面加强材料7 设置在两排地下钢壁体2之间，以防止相应的两排地下钢壁体2 fr om变形到外面。由于平面增强材料7不跨过两排地下钢壁体2，所以可以提高加工性。即使在地震期间由于液化而使上表面消失，具有柔性的平面增强材料7也不会在上方突出，使得即使在下沉之后应急车辆也能在上表面上行进。

10. 发明专利

JP2011184957A Anticorrosion steel pipe pile and method of constructing the same 有权
标题翻译：防腐钢管及其构造方法
公开(公告)号：JP2011184957A
公开(公告)日：2011-09-22
申请号：JP2010051796
申请日：2010-03-09
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KAMEYAMA AKIHISA , KIDA HIROSHI , TANAKA HIROMASA , NISHIYAMA TERUKI , NAGAO NAOYA
IPC分类号： E02D31/06 , E02B1/00
摘要： PROBLEM TO BE SOLVED: To provide an anticorrosion steel pipe pile which is low in cost and easily absorbs a construction error with an excellent appearance, and to provide a method of constructing the same. SOLUTION: The anticorrosion steel pipe pile includes a steel pipe pile 1, an anticorrosion steel pipe 2 and filler 3. The steel pile, being covered with the anticorrosion steel pipe 2 is installed in the vicinity 1a of a droplet tidal zone around the steel pipe pile 1. The filler 3 is filled between the vicinity 1a of the droplet tidal zone of the steel pipe pile 1 and the anticorrosion steel pipe 2. The anticorrosion steel pipe 2 is configured by applying an anticorrosion treatment 2b such as heavy-duty anticorrosion coating or the like on the periphery of a steel pipe body 2a. For the filler 3, mortar or cement is used. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种成本低且容易吸收外观优异的施工误差的防腐钢管桩，并提供其构造方法。
解决方案：防腐钢管桩包括钢管桩1，防腐钢管2和填料3.用防腐钢管2覆盖的钢桩安装在周围的液滴潮汐区1a附近钢管桩1.填料3填充在钢管桩1的液滴潮汐带附近的1a和防腐钢管2之间。防腐钢管2通过施加防腐蚀处理2b，在钢管主体2a的周围具有防腐蚀涂层等。对于填料3，使用砂浆或水泥。版权所有（C）2011，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式