Fiberglass reinforcing tuav yog txawv los ntawm steel tuav, yog li ob peb daim tshev yuav tsum tau ua ua ntej lawv tuaj txog ntawm qhov chaw. Txoj kab uas hla, hom nto, qhov ntev bar, thiab daim ntawv lo yuav tsum phim cov duab kos. Ribbed los yog xuab zeb- cov npoo coated yog siv rau kev sib cog lus nrog pob zeb, thiab saum npoo yuav tsum tsis txhob raug mob hnyav thaum thauj khoom. Cov xim sib txawv me me yog qhov qub, tab sis qhov sib sib zog nqus tawg, tawg kawg, lossis xoob txheej yuav tsum tau kuaj xyuas ua ntej nchuav. Yog tias cov khoom sib xyaw nrog lwm qhov ntau thiab tsawg, txhua lub pob yuav tsum tau cim kom meej ua ntej txiav pib.
Kev khaws cia yog yooj yim tab sis tseem ceeb heev. Cov tuav yuav tsum khaws cia rau theem kev txhawb nqa, kom deb ntawm cov tsheb loj thiab cov npoo ntse. Lawv tuaj yeem raug txiav nrog cov saw zoo, tab sis cov kab ncaj nraim yuav tsum tsis txhob khoov los ntawm kev quab yuam. Rau cov ces kaum, hooks, los yog stirrup-zoo li qhov chaw, ua ntej- cov duab tsim yuav tsum tau txiav txim ua ntej. Cov neeg ua hauj lwm yuav tsum tau xyuas qhov ntev ntawm lub puab tsaig thiab npog ua ntej cov pob zeb ua hauj lwm, vim hais tias me me yuam kev yuav nyuaj rau kho tom qab pouring. Cov kauj ruam no zoo li yooj yim, tab sis lawv pab kom tsis txhob ncua sij hawm thaum kev ua vaj tse twb pib lawm.