Yuav ua li cas lub thickness ntawm PVC los xij pab txhawb rau lawv lub zog thiab kav ntev?
Dec 22, 2023
Dab tsi yog qhov sib txuas ntawm qhov tuab ntawm cov ntawv PVC thiab lawv lub zog tag nrho?
Yuav ua li cas lub thickness ntawm PVC los xij cuam tshuam lawv cov kev tiv thaiv rau sab nraud pressures los yog loads?
Nyob rau hauv dab tsi cov ntaub ntawv siv tau yog qhov nce durability ntawm cov ntawv tuab PVC zoo tshaj plaws?
