Cov yam ntxwv tseem ceeb ntawm EPS rwb thaiv tsev tswj kev laus yog tias cov khoom ua daj thiab hmoov, cov xim tig daj thiab contour yog deformed. Hauv kev siv, ntev npaum li EPS tsis raug rau ultraviolet hluav taws xob rau lub sijhawm ntev, kev laus ceev ntawm EPS tuaj yeem ua kom qeeb zog thiab kev pab lub neej tuaj yeem ntev.
Kev paub
Cov tsos mob ntawm EPS rwb thaiv tsev tswj kev laus？
Aug 13, 2020
Tso lus
Xa kev nug