Product Introduction Hollow anchor bar means a rod that transfers the structures or geotechnical load to a stable rock formations, anchor bolt consists of bar, drill bit, coupling, plate, grouting stopper and nut. Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It’s irreplaceable in narrow construction environment. Hollow anchor bar is made of seamless pipe with high strength. Features of Hollow Grouting Anchor Bar : Hollow design, implement the grouting tube function, avoid the mortar loss when the traditional grouting tube pulled out.Grouting full, and can achieve the pressure grouting to improve project quality. Center is good, mortar can wrap the bolt body together, so that it can avoid corrosion to achibe along term supporting purposes. Easy installation, without onsite processing of threads. It can be…

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