Lub tshuab dhos no ua tau raws li cov kev cai tshwj xeeb ntawm cov neeg siv hauv cov roj av, geological, mining thiab tshuaj industries, thiab nyob rau hauv kev ua liaj ua teb irrigation thiab cov kua dej, nws muaj peev xwm txiav ntau yam ncaj thiab taper yeeb nkab threads ntawm union pob qij txha, laum rods, casting kav, tso kav dej, zoo castings thiab warter twj tso kua mis ntau economic thiab npaum li piv nrog lub cav tshuab dhos, txawm li cas los, nws yuav ua hauj lwm raws li ib tug cav tshuab dhos los txiav ntau yam metric, uas muaj nqis thiab module threads, shafts thiab disks.
