Lub qhov rooj hluav taws kub muaj qib A, B, thiab C raws li, thiab lawv lub sijhawm tiv thaiv hluav taws yog 120 feeb, 90 feeb, thiab 60 feeb, raws li. Cov qhov rooj hluav taws yog qhov rooj siv los tswj qhov hluav taws kub ntawm qhov hluav taws kub thiab muab txoj kev khiav tawm.

6 vaj huam sib luag hluav taws qhov rooj 44mm,hluav taws qhov rooj rau lub qhov rooj tiaj tus,hluav taws qhov rooj thiab qhov hluav taws kub tawm,coj mus muag sab nraud hluav taws qhov rooj , dawb hluav taws qhov rooj kev muag khoom ,steel hluav taws tawm,aluminium hluav taws tawm qhov rooj,6 vaj huam sib luag hluav taws qhov rooj 44mm,jeld wen 35mm hluav taws qhov rooj,hluav taws qhov rooj thiab qhov hluav taws kub tawm,2ft qhov rooj hluav taws, qhov rooj hluav taws kub,6 vaj huam sib luag hluav taws qhov rooj 44mm,dawb vaj huam sib luag hluav taws qhov rooj, 711mm hluav taws qhov rooj,steel hluav taws tawm,hlau hluav taws khiav qhov rooj,hluav taws qhov rooj thiab qhov hluav taws kub tawm,steel hluav taws khiav qhov rooj,steel hluav taws tawm,hluav taws kub qhov chaw nres tsheb qhov rooj 32 × 80,