4525| 12
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問(wèn)題探討,密封艙結(jié)構(gòu)設(shè)計(jì) |
評(píng)分
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點(diǎn)評(píng)
樓主說(shuō)不需要焊接。這個(gè)標(biāo)準(zhǔn)是焊接的。而且只是做容器的裝液體,或者顆粒固定的。不合適。
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