Ua ntej- muag
(1) Cov khoom siv qauv xaiv.
(2) Tsim thiab tsim cov khoom raws li cov neeg siv khoom tshwj xeeb.
(3) Muab kev cob qhia kev cob qhia rau cov neeg siv khoom.
(4) Muab pub dawb rau ntawm -kev sib tham hauv chaw, kev npaj chaw, thiab kev pabcuam tsim qauv.
Thaum - muag
(1) Kev tshuaj xyuas cov khoom thiab kev lees paub.
(2) Pab cov neeg siv khoom tsim cov phiaj xwm kev tsim kho.
Tom qab - kev muag khoom
(1) Cov khoom siv installation thiab commissioning.
(2) Ntawm - chaw cob qhia rau cov neeg ua haujlwm.
(3) Muab rau ntawm -qhov chaw txhawb nqa kev lag luam thaum pib tsim khoom.
(4) Muab cov neeg mob siab rau tom qab- muag engineers los pab cov neeg siv khoom daws teeb meem.
(5) Ua raws li tsis tu ncua -cov kev pabcuam thiab sau cov lus qhia rau cov neeg siv khoom.