Qhov txawv ntawm pvc yas thiab fiberglass:
PVC yas yog polyvinyl chloride yas, uas yog cov yas pheej yig tshaj. Nws yog cov khoom lag luam semi-tiav xws li cov kav dej thiab cov phaj.
FRP yog unsaturated resin ntxiv dag zog los ntawm cov khoom siv ntxiv thiab solidified los ntawm tus neeg sawv cev sib txuas. Nws yog tsuas yog cov khoom tiav nrog lub zog siab thiab hardness. Nws tsis yaj thaum rhuab. Cov xim muaj feem xyuam rau cov khoom ntxiv.
Yog tias koj xav tau FRP vaj huam sib luag, thov hu rau peb!