Q345 ndi mtundu wa chitsulo chochepa cha alloy chomwe chimagwiritsidwa ntchito kwambiri m'milatho, magalimoto, zombo, nyumba, zotengera zokakamiza, zida zapadera, ndi zina zotero, pamene "Q" imatanthauza mphamvu zokolola, ndipo 345 imatanthauza kuti mphamvu zokolola zachitsulo ichi ndi 345MPa. . The kuyezetsa q345 zitsulo makamaka kuphatikizapo ...
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