常用的五金材料有以下这些:1:钢:A3,20#,30#,45#,20Gr,40Gr2:不锈钢:430不锈铁,201,304,3163:铜:58-3铜,59-1铜,62铜4:铝:6061,6063,60185:塑料棒:POM,PA,ABS
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