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25-Jun-12
L/C, T/T

Product Details

grout bolt(Prestressed Bolt) :

Thread bar Bolt is composed of screw thread steel bar , high strength plate ,casting damping nut ,yield tube, washer , and other accessories . According to the structure of steel bar ,the bolt has two stypes : Rib Rebar Bolt and Non-Rib Rebar Bolt .

The bolt is usually used in thick coal seam ,that has high stress, large deformation, difficult to support and other poor environment .

Supporting Documents

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Business Details

25-Jun-2012
Shandong Tongrui Mining Technology Co.,Ltd was founded in 2007 in Tai an, Shandong, China. In 2011 we set up GSI(Ground ...
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