红铜管red copper tube
异形铜管shaped copper tube
铜管brass tube
无铅黄铜锭Lead free brass ingot
无铅铜棒Lead free copper rod
无铅铜管Lead-free copper tube
快削铜棒Free Cutting copper rod
铜棒Forged copper rod
高强度铜棒High-Strength copper rod
抛光铜棒Polishing copper rod
