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نمودار جریان خرد کردن کرومیت
WEBانواع سقف کرومیت، مزایا و معایب آن در این مقاله مورد بررسی قرار گرفته است. ... به طور کلی، این تیرچهها توانایی تحمل کردن بارِ قبل از گیرش بتن و پس از آن را دارند و بارهای زنده و مرده را تحمل می ...
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