1. Lub dav hlau thiab facade ntawm lub staircase yuav tsum nyob ntawm 90 degree kaum sab xis. Ua ntej, ntxuav lub staircase cov kauj ruam thiab siv universal nplaum rau pem hauv ntej ntug thiab sab nraum qab ntawm lub ces kaum nres strip ntawm staircase. Tos kom nws qhuav me ntsis ua ntej sib txuas. Siv ib rab rauj los tsoo qhov chaw sib txuas.
2. Xwb, laum qhov ntawm lub hauv paus aluminium alloy, txhim kho aluminium alloy anti slip sawb mus rau tus ntaiv nto nrog screws, thiab thaum kawg ntxig ib lub roj hmab strip rau saum npoo.
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Leah Liu
Nyob zoo! Kuv yog Leah. Kuv tau ua haujlwm hauv kev lag luam khoom siv hauv tsev rau ntau tshaj 10 xyoo. Kuv xav qhia kuv qhov kev paub ntawm no - cia peb ua haujlwm ua ke!