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想買(mǎi)液壓機(jī),下面板材尺寸怎么計(jì)算噸位? |
點(diǎn)評(píng)
他那個(gè)應(yīng)該是鏈條沖壓床子,,同時(shí)沒(méi)有說(shuō)明座板是什么,?
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