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  • (cur | prev) 00:34, 12 February 2026DarylK44358 (talk | contribs). . (5,369 bytes) (+5,369). . (Created page with "<br><br><br>鋼管可採用對縫焊接或螺旋焊接,這些技術顯著增強接頭的強度和耐壓能力。 不當選擇可能導致接頭處的應力集中,並引發...")