供应国标H62黄铜带、H65无铅黄铜带、H68黄铜带
进口环保H62黄铜线、H65..
拉伸6061合金铝带、606..
环保5052-O态铝板、50..
挤压7075合金铝棒、747..
国标环保C2680黄铜棒、C..
供应国标H62黄铜带、H65..