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1997-10-22
Metal halide lamp
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Combination structure of light steel frame of ceiling
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Structural improvement of light steel frame ceiling
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Improved structure for combination-plate of light steel frame
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2000-10-11
Fixing sheet structure of light steel framework metal ceiling
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1999-08-11
Metal rooflights
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1999-10-01
Improved structure of light steel frame
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2000-09-11
Light steel framework improvement for ceiling structure
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1998-09-01
Ceiling metal light steel assembly
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Screen apparatus of aluminium slag
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1998-10-01
Improved structure of light steel frame
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1998-09-11
Metal ceiling frame (1)
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Fixing and stiffening structure for suspended light steel ceiling
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Blind framework structure of metal ceiling
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Building supporting structure made of metal components
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1998-09-11
Improved structure of steel ceiling
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1998-01-21
Apparatus for fixing ceiling panels
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1998-10-01
Improved structure of a ceiling dual-color light steel frame
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Light steel frames ceiling frame