Has time arrived for you to bring a contact of luxurious and modernity to the rest room space? Welcome towards your best information to complete click here ba...一般情况下先预埋烟管再进行吊顶，先预埋烟管比较方便用户和服务技师后期烟机的安装工作，并且也比较美观。如果先吊顶，后期预埋烟管的