SelfDrillingAnchorBoltFactory Product Introduction T thread self-drilling anchor bolt can be installed for pre-support, acting as steel structure for load-bearing, or thought it grouting to achieve better geological condition. 聽 Product Parameter SizeO.DI.DSectional AreaUltimate LoadYield LoadAgt(%)Weight (mm)(mm)(mm虏)(Kn)(Kn)(kg/meter) T40T40-1640.016.0900660525锛?0%7.10...