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Horizontally adjustable chair armrest
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Improved structure for adjusting height and position of backrest of chair
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Adjustable armrest of chair
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Structure of armrest of chair with adjustable height
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Improved structure of chair with adjustable height and foldable armrest
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Height adjustment structure for backrest or armrest of chair
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Structure of armrest of chair
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Improved structure for height adjustment of armrest of chair
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Improved structure of armrest of chair
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Height adjustment structure for armrest of office chair
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Improved structure of armrest with adjustable height and front-and-back position
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Structure improvement of chair with backrest
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Improved structure of armrest for office chair
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Structure of chair armrest with adjustable height and forward/backward movement