C75700C75720銅合金HPb59-1C37800CZ122Cu-Zn40PbCu-Zn39Pb2C3710CuZn39Pb2HPb58-3C38000CZ121-CuZn39Pb3C3603CuZn39Pb3HSn90-1C41300,C41100-----HSn70-1C44300CZ111CuZn39Sn1CuZn28Sn1C4430CuZn28SnlHSn62-1C46200,C46420CZ112--C4622,C4621CuZn38SnHSn61-0.5C48200
品牌:進口國產 規格:規格齊全 產地:進口國產 材質:C75700 C75720銅合金