Cov khoom zoo yog qhov tseem ceeb heev txhua lub sijhawm. Tsuas yog thaum qhov zoo tuaj yeem ua kom ntseeg tau tiag tiag tuaj yeem muaj kev lees paub zoo dua hauv cov txheej txheem ntawm kev siv PERT pem teb cua sov kav. Tib yam muaj tseeb rau pert pem teb cua sov yeeb nkab fittings, peb yuav tsum tau lav qhov zoo, kom tag nrho cov cua sov hauv pem teb yuav siv tau zoo dua.
Thaum xaiv cov kav dej, koj yeej xav kom lav qhov zoo. Lub sijhawm no, koj yuav tsum xyuas kom meej tias lub teb chaws cov qauv rau pert kav tau ua tiav. Yog hais tias txawm tias qhov tsawg kawg nkaus hauv teb chaws cov qauv tsis tau paub txog lub sijhawm no, nws yog ib qho yooj yim ua rau cov khoom nws tus kheej tsis tsim nyog, thiab tau kawg nws yuav cuam tshuam ncaj qha rau qhov zoo ntawm tag nrho cov khoom.
Tau kawg, thaum xaiv cov yeeb nkab thiab fitting manufacturers, thiaj li yuav zoo dua lav qhov zoo, cov manufacturers peb xaiv yog cov khoom ntawm loj manufacturers. Tsuas yog nyob rau hauv txoj kev no peb tuaj yeem ua kom zoo tag nrho, txawm tias muaj teeb meem hauv kev siv cov khoom. Nyob rau lub sijhawm no, tseem yuav muaj cov neeg ua haujlwm pabcuam tshwjxeeb los pab peb daws cov teebmeem no, thiab cov khoom ntawm cov tuam txhab loj yuav muaj kev ntseeg siab dua.
