a device consisting of a sealed glass tube partially filled with alcohol or other liquid, containing an air bubble whose position reveals whether a surface is perfectly level or plumb.
wonder board, 然後 tile compound level. 大致在wonder board 取代水泥時可以弄平一些, anything less then 1/8 of inch can be adjust by tile compound when apply to the floor.
self-levelling compound 评价不是很好
Level:
a device consisting of a sealed glass tube partially filled with alcohol or other liquid, containing an air bubble whose position reveals whether a surface is perfectly level or plumb.
真没干过活啊？
那些leveling system都是给业余DIY的。
不要粗暴猛打，要像做爱一样轻轻地敲。
wonder board, 然後 tile compound level. 大致在wonder board 取代水泥時可以弄平一些, anything less then 1/8 of inch can be adjust by tile compound when apply to the floor.