Perfect Corrosion Resistant Expansion Rock Bolt In Tunneling Environment
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... industry. The metric thread type ensures that the bolt and nut assembly is easy to install, and the hexagon head bolts ensure that the bolt can be tightened to the required level of tension. The Expansion Shell Rock Bolt is known for its strength and...
Cangzhou Fuhua Prestress Technology Co., Ltd
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Expansion Shell Rock Bolt Post Tension Anchor Mechanical Rock Support Bolt
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Expansion Shell Rock Bolt Rock Support Bolt Mechanical Rock Support Bolt Description Expansion shell bolts are a common style of area ground support. A point anchor bolt is a metal bar between 20 mm – 25 mm in diameter, and between 1 m – 4 m long There is an expansion shell at the end of the bolt which is inserted into the hole. As the bolt is tightened by the installation drill the expansion shell expands and the bolt tightens holding the rock...
Sunrise Foundry CO.,LTD
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39mm 47mm Galvanized Friction Rock Bolt and Split Set Stabilizer for Underground Mining with High Corrosion Resistance
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...Rock Bolt/split Set Rock Bolt Manufacturer in China Production introduce Mining Friction Bolt are mainly used in hard rock mines such as copper and gold mines. Bolts are installed in the rock strata by extrusion, which can generate axial and radial frictional expansion force with the rock strata, thereby generating huge supporting force and protecting the safety of the roadway. Mining Friction Bolt......
HEBEI MINETECH MACHINERY TECHNOLOGY CO., LTD
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Rock bolt with Expansion shell
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... load-bearing ground. The expansion shells hold in any rock strata which is sufficiently competent to provide an adequate anchorage. They are designed to anchor in soft ground or hard rock. In good strata the anchorage exceeds the ultimate strength of the...
HEBEI LONGQUAN INDUSTRY CO., LTD.
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Grade 8.8 M24 Wedge Expansion Through Bolt Carbon Steel Concrete Anchor Bolt
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... an expansion wedge. Its simple structure facilitates easy installation and removal. Expansion Principle: By rotating the bolt, the expansion wedge moves within the expansion tube, causing the tube to expand radially and securely anchor into concrete or...
Jiangsu Ying Yan Fastening System Technology Co.Ltd
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Coupling Connector Expansion Anchor Bolts Wall Wedge Anchor Screw Bolt 304 316
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...Expansion Anchor Bolts Wall Wedge Anchor Screw Bolt 304/316 Product : Expansion bolts are used to secure materials to concrete or masonry surfaces. Anchor bolts are used to secure materials to wood or metal surfaces. Expansion bolts are inserted into predrilled holes in the concrete or masonry surface. Anchor bolts are inserted into predrilled holes in the wood or metal surface. Expansion......
Guangzhou Younaide Metal Products Co., Ltd.
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High Durability Expansion Anchor Bolt , Heavy Duty Anchor Bolts For Concrete
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... Galvanized Expansion Anchor Bolt Product description: Expansion anchor bolt also known as the expansion screw. It’s fixed principle is: by use of cuneiform slope to cause expansion to produce friction.The types of expansion anchor bolts include: steel......
XINYUXIANG FASTENING PIECE CO., LTD.,
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DIN Standard Expansion Anchor Bolts With Longer Life Finish For Building Construction
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.... They come in different diameters, including 3/16'', 1/4'', 5/16'' and 12mm, and can have a bright (uncoated) finish for longer life. Especially designed for Expansion Anchor Bolt, they are the perfect choice for 16*150 stainless steel bolts and nuts....
WUHAN XINCHENG METALS MINERALS TRADE CO.,LTD
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Made-in-China M16 Anchor Bolt Extension Galvanised,expansion bolt, expansion anchor bolt
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...Bolt Extension Galvanised,expansion bolt, expansion anchor bolt Made-in-China M16 Anchor Bolt Extension Galvanised,expansion bolt, expansion anchor bolt Our Beishuo expansion bolt for structural steel tubeis suitable for use with rectangular, square and circular steelwork sections, or other types of metalwork where access is restricted to one side only. Our Beishuo expansion bolt for structural steel tubeis ablind bolt...
Yuyao BeiShuo Hardware Co.,Ltd
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Galvanized Carbon Steel Expansion Anchor Bolt M6-M24 Grade 4.8 60-150mm Length
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... in a special thread connector. Carbon steel bolt level is divided into 3.6,4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9 more than 10 grades. The figures before and after the decimal point indicate the nominal tensile strength and yield ratio of the bolt material,...
Handan city Yongnian District Maide Fasteners Co. Ltd
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