Sinorock is specialized in the development,production and sales of anchoring products.We have sereval advanced anchor bolt production lines and equipments.Our main products include:Self drilling anchor bolt,Large diameter anchor bolt,Expansion shell anchor bolt,Fiberglass anchor bolt and so on. Self drilling anchor 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 anchor 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. Expansion shell anchor bolt is applied for temporary and permanent support in relatively good geological conditions, especially for hard rock, horizontal bedding and jointing fissures with mud. Fiberglass anchor bolt is made of high quality pultrusion resin, alkali-free glass fiber yarn and other auxiliary materials.It is a new kind of all thread bolt, which is specially suitable for fully-mechanized coal mining. Friction rock bolt is a new kind of bolt with full length anchorage and active reinforcement function,which is used for supporting of mine, tunnel, slope, underground culvert roof.