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熱鍍鋅能否在彎曲的空氣管中保留鋅層？---[請(qǐng)教] |
Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1，京ICP證050210號(hào)，浙公網(wǎng)安備33038202004372號(hào) )
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發(fā)表于 2007-8-24 08:28:27
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