http://www.rockbolting.netExport DepartmentAlex YanPhone: +86 - 379 - 63501959/+86 - 15838868783Fax: +86 - 379 - 63501159
2-1-1601, Yinrun Central Plaza, the intersection of Yongtai Street & Taikang Road, Luoyang, Chinaluoyang, HenanChina, 471000Web Page Link: https://www.toboc.com/luoyanggongyantechnologycoltd746575D&B D-U-N-S Number: 4084191214
In certain situations with solid rock, or intrusion of water, it is necessary to load the rock bolts immediately. In such cases the prestressed hollow anchor bolt will be inserted into the hole and then rotate leading to a parallel expansion of the shells.For corrosion protection and for sealing off the intruding water the prestressed hollow rock bolt is injected with grout.
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Luoyang Gongyan Technology Co.,Ltd