self-drilling anchor bolt

We are a professional manufacturer of rock drilling tools in China. Our main products include rock drill, TBM cutter, roller cutter bits, DTH hammer, DTH bit, button bit, retract button bit, cross bit, chisel bit, drill rod, drill tube, shank adaptor, coupling sleeve, pilot adaptor, overburden drilling equipment, cutting tools which are used for mining, quarrying, tunneling, water well drilling, mineral exploration, geological prospecting, civil engineering and construction. Etc. Rock Anchor products have a wide range of applications in civil and tunneling industries, including tunnel reinforcement/refurbishment, cliff and slope reinforcement, wall stabilization, rock-netting retention, parapet wall reinforcement, and gabion basket anchors. Self-Drilling Rock Anchor Systems: Hot-dip Galvanize and Plain Self Drilling Hollow Bar (R25N, R32N, R32S, R38N, R51L, R51N, T76N, T76S, 30/11, 30/14, 30/16, 40/16, 40/20, 52/26)) Tungsten Carbide and Steel Cross, Button Bits (R25 x 42 mm, R32 x 51 mm, R38 x 76mm, R51 x 110mm etc) Anomalistic Cast Bits ( R32 x 75mm, R38 x 110mm etc) Three Aerofoil Cast Bits ( R38 x 110mm, R51 x 110mm etc)Tungsten Carbide and Steel Arched Cast Bits (R32 x 51 mm, R38 x 75mm, R51 x 110mm etc) Coupling Sleeves (R25 & R32 & R38 & R51 etc)Nuts (R25 & R32 & R38 & R51 etc). (1) diameter: R25N (25/14), R32L (32/22), R32N (32/18.5), R32S (32/15), R32N (38/19), R51L (51/36), R51N (51/33), T76N(76/51), T76S (76/45) (2) Steel Grade: ACC. TO EN 10083-1 (3) Tensile Load: 200-1900KN. (4) Standard length: 1M,2M,3M,4M,6M (5) Supply ability:300MT/month (6) Package: in bundles. (7) Delivery time :30days (8) Payment terms:T/T or L/C