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1960年，我们开始制作环行器 |
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specializing in circulators since
1960 |
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our 49th anniversary was celebrated in 2009 |
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1960年，我们开始制作环行器 |
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specializing in circulators since
1960 |
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|
|||
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||
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our 49th anniversary was celebrated in 2009 |
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