There are kinds of PVC ceiling film produced by Halead, such as translucent film, lack (glossy, face to face) film, matt film, satin film, printed film, coated fabric ceiling and fiberglass ceiling.
“海利得”软膜天花种类有：透光天花、亮面天花、哑光面天花、缎面天花、彩绘天花、化纤天花和玻纤天花布等。
The ceiling may have wood reflectors, or a few boxes filled with environmentally-safe fiberglass material may hang from the ceiling to stop any ringing caused by the ceiling.
天花板上可能会有木制反射面，或者有一些用环保玻璃纤维填充的小盒子悬挂在天花板上以防止由于天花板带来的任何响声。
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