除去各部防锈脂及尘积物。
l 能有效地除去浴盆，洗手盆和瓷砖表面的水斑渍和人体脂类污渍。
L Spots and grease on the surface of washbowl , bathtub and urinal, can be removed and make them bright as fresh.
洗涤工序是十分必要的，因为此工序可以除去纤维上的天然油脂、脂汗和尘土。
Scouring is essential, for it removes the natural grease in the fiber, the suint, dirt and dust.
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