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CW451K-H180供應CW451K-H180銅合金CW451K-H180材質CW451K-H180價格CW451K-H180現貨CW451K-H180板材CW451K-H180供應CW451K-H180廠家CW451K-H180性能CW451K-H180成分CW451K-H180材質證明東莞同祥主營：銅鎳鋅系合金（洋白銅/
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CW451K-R550供應CW451K-R550銅合金CW451K-R550材質CW451K-R550價格CW451K-R550現貨CW451K-R550板材CW451K-R550供應CW451K-R550廠家CW451K-R550性能CW451K-R550成分CW451K-R550材質證明東莞同祥主營：銅鎳鋅系合金（洋白銅/
品牌：銅合金 規格：規格齊全 產地：進口國產 材質：CW451K-R550
