实心楼梯的支撑结构

{"ch":[9,140],"li":[9],"si":[11],"tr":[11],"pl":[17],"cz":[17],"sk":[17],"fr":[19,228,229,267],"lu":[19],"ru":[24],"ua":[24],"by":[24],"ee":[24],"lv":[24],"lt":[24],"md":[24],"bg":[24,244],"ge":[24],"az":[24],"am":[24],"tm":[24],"uz":[24],"kg":[24],"tj":[24],"kz":[24],"jp":[33,125,257],"tl":[39],"pg":[39],"la":[39],"bt":[39],"np":[39],"il":[40],"br":[43],"de":[74,212,240],"nl":[74],"us":[96,259,260,285],"ca":[96,260],"cn":[148],"kr":[151],"tw":[151],"nz":[151],"id":[151],"ph":[151],"bn":[151],"bd":[151],"my":[151],"sg":[151],"vn":[151],"hk":[151],"th":[151],"kh":[151],"mm":[151],"qa":[159],"ae":[159],"sa":[159],"eg":[159],"om":[159],"kw":[159],"iq":[159],"ir":[159],"sy":[159],"lb":[159],"dz":[159],"ma":[159],"tn":[159],"ly":[159],"jo":[159],"ve":[171],"co":[171],"ec":[171],"pe":[171],"cl":[171],"ar":[171],"bo":[171],"py":[171],"uy":[171],"gb":[195,293],"ie":[195],"hr":[244],"ba":[244],"hu":[244],"rs":[244],"me":[244],"al":[244],"mk":[244],"gr":[244],"ro":[244],"at":[245,292,293],"dk":[256],"no":[256],"fi":[256],"es":[262],"pt":[262],"se":[266],"in":[276],"it":[291]}