Suncon Group is a profession Manufacturer & Supplier of Rock Drilling Tools for Mining and Construction, and we would like to send me message to see if there is any chance for cooperation.Our major range of products are as following:1.Rock drilling equipment and accessories (Chisel/cross/button bits, integral/tapered drill rods etc.)2.Down the hole hammer and bit;3.Blast furnace taphole drill rod and bits;4.Self Drilling rock bolts;;5.Paving breakers and pick hammer tools, 6.Engineering geological equipment and accessories(diamond core bits);7.Various sorts of raw material used for manufacturing rock drilling and contractor tools/equipment, e.g. hollow drill steel, tungsten carbide tips/buttons/inserts Now we especially introduce the following products to you:1.Hexagonal hollow drill steel Size: 22mm A/F (7/8" A/F)Grade: 95CrMo 2.Hexagonal drill rods with shank but without tipsSize: 22mm x 108mm shank3.Integral drill rods Size: 22mm x 108mm shank Anymore information,please contact with me by e-amil lilp (at)163.com