Hauv Tuam Tshoj txoj kev lag luam yeeb nkab hauv nroog, cov kav dej xa dej thiab cov kav dej yog nws ob lub khw loj. PE tshuaj Suav lub npe, polyethylene, PE khoom vim nws lub zog siab, kub tsis kam, corrosion kuj, hnav tsis kam thiab lwm yam ntxwv, yog dav siv hauv kev tsim dej thiab kev tsim dej. Vim nws tsis xeb, nws yog ib qho zoo tshaj plaws rau kev hloov cov kav dej hlau zoo tib yam. Yog li ntawd, National Bureau of Standards tau hloov kho ntau yam hauv tus qauv tshiab GB/T13663-2000, uas tau teev tseg tias qhov sib txawv ntawm PE80 thiab PE100 ntawm cov kav dej xa dej sib haum mus rau qhov sib txawv ntawm lub zog, thiab tshem tawm. lub zog tensile kev ua tau zoo nyob rau hauv cov qauv qub, thiab ua kom lub elongation ntawm so (ntau dua 350%), uas yog, hais txog qhov yooj yim toughness.
Ntawm tag nrho cov engineering plastics, qhov hnav tsis kam ntawm HDPE yog cov yas yas thiab yog qhov muag pom. Qhov siab dua qhov hnyav ntawm cov khoom siv, qhov hnav-tiv taus ntau dua, ntau dua li cov ntaub ntawv hlau (xws li carbon steel, stainless hlau, bronze, thiab lwm yam). Nyob rau hauv cov xwm txheej uas muaj zog corrosion thiab hnav siab, kev pab cuam lub neej yog 4-6 zaug ntawm cov yeeb nkab steel thiab 9 npaug ntawm cov polyethylene zoo tib yam; Thiab txhim kho kev sib kis tau zoo los ntawm 20%. nplaim retardant, antistatic kev ua tau zoo, txhua yam ua tau raws li tus qauv yuav tsum tau ua. Downhole kev pab cuam lub neej ntawm ntau tshaj 20 xyoo, zoo kawg li kev lag luam cov txiaj ntsig, kev cuam tshuam tsis kam, hnav tsis kam, ob chav ua haujlwm kuj zoo kawg li.