腳踏車車架 - 自行車

By Irma
at 2009-12-29T00:00
at 2009-12-29T00:00
Table of Contents
你好我想請問一下腳踏車的車架一些問題一般來說腳踏車的材質是鈦合金高碳鋼以及鋁合金那麼他們的優缺點是甚麼??????那麼鈦合金真的事最好的嗎?高碳鋼又比鋁合金好嗎他們的重量又是誰比較重??拜託請詳細解答謝謝
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自行車
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By Franklin
at 2009-12-29T10:26
at 2009-12-29T10:26

By David
at 2010-01-01T14:43
at 2010-01-01T14:43
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