Tsis siv neeg cov yeeb nkab tej tshuab yog qhov haum rau kev ua cov kav dej ntawm ntau yam ntaub ntawv, feem ntau yog suav nrog:
Cov kav dej hlau: xws li kav hlau steel, kav dej txhuas, cov kav dej tooj liab, thiab lwm yam pipes qauv qauv, thiab petrochemicals. Tsis siv neeg yeeb nkab txiav machine tuaj yeem txiav cov kav hlau loj nrog qhov ntsuas siab thiab nrawm raws li qhov ntev thiab cov ces kaum.
Cov kav dej yas: xws li muab cov kav dej PVC cov kav dej, PE PIPES, ETC. Cov raj dej pipelines tau siv cov dej ntws thiab tso pa hluav taws xob, tshuaj lom neeg siv hluav taws xob, thiab lwm yam.
Tsis tas li ntawd, qee qhov kev ua yeeb nkab tsis tau cov pa roj, cov kav hlau txiav ntau yam xws li cov kav dej sib tw, tab sis kuj yog cov kav dej sib txawv, Cov hlau, U-puab cov kav dej, thiab lwm yam.
Zuag qhia tag nrho, tsis siv neeg yeeb nkab txiav tej tshuab muaj ntau cov ntawv thov thiab tuaj yeem ua kom tau raws li kev xav tau ntawm cov kav dej sib txawv thiab cov ntaub ntawv. Thaum xaiv ib qho tsis siv neeg yeeb nkab txiav tshuab, nws yog ib qho tsim nyog los xav txog cov kev cai thiab cov yam ntxwv khoom, muaj ntau yam kev thov, thiab qib kev siv tshuab.
