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Gs/T 3564һ93
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Classification and names of components of bicycles£¬
and basic technology
1993һ07һ21·¢²¼ 1994һ03һ01ʵʩ
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Classification and names of components of bicycles,
and basic te
GBT 3564-1993 自行车部件分类、名称和主要术语.pdf