Txhim khu kev sib txuas: cov yeeb nkab polyethylene txuas nrog hluav taws xob cua sov, thiab lub zog ntawm kev sib koom ua ke yog siab dua lub zog ntawm lub cev yeeb nkab; Qhov kub tsis tshua muaj kev cuam tshuam yog qhov zoo: qhov kub tsis tshua muaj qhov kub ntawm polyethylene yog qhov qis heev, uas tuaj yeem nyob rau hauv qhov kub ntawm -60-60 ℃ Kev nyab xeeb siv. Thaum lub caij ntuj no kev tsim kho, vim muaj kev cuam tshuam zoo ntawm cov khoom siv, cov yeeb nkab tawg yuav tsis tshwm sim; Kev ntxhov siab zoo tawg tsis kam: HDPE muaj qhov qis qis qis, siab shear zog, zoo khawb tsis kam, thiab ib puag ncig kev ntxhov siab tawg. Kuj tseem ceeb heev.
