At present, the problem of cleaning the old fashioned way, shutter must crack the shutters and glass brought clear danger more than cleaning. Mirror, shutters were at the bottom of the shutter glasses are difficult to clean. Etc. My group is therefore to devise tools for cleaning shutters, to save time on cleaning and can also be an accident from cleans shutters.
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การแปล กรุณารอสักครู่..
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