LF21防鏽鋁板
2024-09-07
LF21防鏽鋁爲AL-Mn系合金，是應用廣的一種防鏽鋁，這種合金的強度不高（稍高於工業純鋁），不能熱處理強化，故採用冷加工方法來提高它的力學性能：在退火狀態有很高的塑性，在半冷作
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