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背もたれおよび座席の調整が連動している、腰掛け用家具部材
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用于座椅家具的倾斜机构以及包括所述倾斜机构的座椅家具
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Chair having adjustable back and seat
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Improvement in adjustable iron chairs
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Кресло для зрительных залов
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등받이 각도와 시트 위치가 연동되는 구조를 갖는 의자