Peb cov khoom lag luam feem ntau lees paub thiab ntseeg tau los ntawm cov neeg siv khoom thiab tuaj yeem ua tau raws li qhov kev xav tau ntawm kev lag luam thiab kev sib raug zoo rau Roller Rock Bit,17 1/2" Roller Cone Bit, Scrap Drill Bit, Drilling Bit,Siv Drilling Bits.Peb lub tuam txhab tau mob siab rau muab cov neeg yuav khoom nrog cov khoom lag luam zoo thiab ruaj khov ntawm tus nqi txhoj puab heev, ua rau txhua tus neeg siv khoom txaus siab rau peb cov khoom thiab cov kev pabcuam.Cov khoom yuav muab rau thoob plaws lub ntiaj teb no, xws li Europe, Amelikas, Australia, Sheffield, USA, Wellington, Karachi.Txoj kev muaj zog yog qhov xav tau ntawm txhua lub koom haum.Peb tau txais kev txhawb nqa nrog lub chaw tsim khoom muaj zog uas ua rau peb tsim khoom, khaws cia, kuaj xyuas zoo thiab xa peb cov khoom thoob ntiaj teb.Txhawm rau kom muaj kev ua haujlwm zoo, peb tau faib peb cov kev tsim kho vaj tse rau hauv ntau lub tuam tsev.Tag nrho cov chav haujlwm no yog ua haujlwm nrog cov cuab yeej tshiab, cov tshuab ua haujlwm tshiab thiab cov cuab yeej siv.Raws li qhov no, peb muaj peev xwm ua kom tiav voluminous ntau lawm yam tsis muaj kev cuam tshuam rau qhov zoo.