| Writer：cnts |
Update time：2003/7/28 下午 05:27:51 |
合金鋼螺絲的優缺點為何？as title!
有人可為我解答嗎？
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| Writer：wj |
Update time：2003/8/15 下午 06:43:49 |
合金剛優缺點優點:高拉力,高扭力
缺點:延伸率差,電鍍時易引起氫脆化,不易切削,材料較鐵材高
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| Writer：ckOXg3rb |
Update time：2015/10/26 下午 05:29:42 |
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| Writer：GQB7AH7zUa |
Update time：2015/12/23 上午 12:58:32 |
TSf8NdSzumlQTynchtyk 9 rada, chto vy ne zdaetes' i btreoes'. mne priyatno znat', chto vy ras
skazyvaete o Tileke i daete vozmojnost' pomnit' o nem. 9 nadeus' na to chto vy v
se taki snimite o nem film. 9 by ochen' hotela by posmotret' ego i vse ostal'nye
odnaklasniki Tileka toje. My vseda gotovy pomoch' vam.
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