Sinorock self drilling rock bolt combines drilling, grouting and anchoring together. It ensures the anchoring effect in complex ground conditions. It’s safe, reliable and efficient.R thread self drilling anchor bolt is suitable for broken rock, loose soil and conditions which are difficult to drill holes, such as fracture zones, decayed rock, gravel, sandy gravel, backfill ground.T thread self drilling rock bolt is a kind of stainless hollow anchor. It applies to marine environment and chloride corrosion conditions.Large diameter anchor bolt is a type of self drilling anchor bolt, which has a larger diameter than other common sizes. It is applied for constructions of shallow buried parts of tunnel portal, fault zones and sand belt in tunnel, collapsed tunnel and urban tunnel.
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