Thaum lub qhov rooj hluav taws raug tsim thiab molded, nws yuav muaj txiaj ntsig zoo ntawm kev tiv thaiv hluav taws thiab kev sib cais ntawm cov pa luam yeeb, thiab ua tau raws li qhov yuav tsum tau muaj kev tiv thaiv hluav taws, kev ncaj ncees thiab kev rwb thaiv tsev kub. Kev teeb tsa lub qhov rooj hluav taws tuaj yeem tiv thaiv kev sib kis ntawm hluav taws hauv ib lub sijhawm, thiab xyuas kom meej tias cov neeg khiav tawm tuaj yeem yuav lub sijhawm rau kev khiav tawm thiab tua hluav taws.