Kev tiv thaiv ib puag ncig: Cov kav dej siv tam sim no yuav tsum nyob ze rau kev tiv thaiv ib puag ncig. Yog hais tias lawv yog ib co kuab paug heev los yog tsim kev puas tsuaj cov ntaub ntawv, lawv yuav raug tshem tawm ncaj qha. Cov khoom siv raw ntawm PPSU cov yeeb nkab fittings yog cov ntaub ntawv zoo ib puag ncig, yog li lawv tuaj yeem siv tau ntev nyob rau theem tom ntej. Kev ruaj ntseg siab: PPSU yeeb nkab fittings muaj kev ruaj ntseg siab, ob qho tib si solubility ntawm dej ntawm qhov kub thiab txias thiab solubility ntawm qhov kub thiab txias yog qhov ruaj khov heev, thiab tuaj yeem siv rau hauv ntau qhov kub thiab txias. Cov kua qaub thiab alkali tsis kam: cov khoom siv hauv tsev lawv tus kheej yuav tsum muaj cov kua qaub thiab alkali tsis kam, vim tias cov kua qaub thiab alkali qib ntawm cov cheeb tsam sib txawv. Cov tubing siv tsis tau thiab yog qhov poob loj rau tus neeg siv. Kev kub siab ua haujlwm: PPSU cov yeeb nkab fittings tuaj yeem xa ncaj qha mus rau dej kub yam tsis muaj kev puas tsuaj, vim nws qhov ruaj khov siab, nws cov yam ntxwv yuav tsis cuam tshuam rau qhov kub thiab txias.
