Qhov ntaub ntawv
The stairs rau nws 2500 hli
Qhov ntev ntawm tus stair qhib rau 3000 hli
Dav ntawm platform 800 hli
Cov nab npawb ntawm cov kauj ruam 10
Instead of chaw ua si 4 Theem
Thickness ntawm cov kauj ruam 50 hli
Cov kauj ruam qhia 50 hli

Nyo hau hlua staircases
Qhov ntev ntawm lub lub stair stringers 2663 hli
Qhov ntev ntawm qab lub stairs Stringer 1775 hli
Qhov kev ncua deb ntawm zapilami hauv stairs bridgeboards 444 hli
Ntawm lub kaum sab xis ntawm the stairs 34.3° hauv pem teb

Luaj li cas ntawm cov kauj ruam
Nws txawj 250 hli
Le theem 417 hli
Nws yog podstupenka 200 hli