金属 库存总量 注销仓单 注销占百分比 铜 194,025 42,550 21.93% 铝 2,441,175 1,056,600 43.28% 锌 397,725 27,800 7.00% 镍 385,908 123,390 31.97% 锡 6,360 1,440 22.64% 铅 185,550 73,050 39.37% 铝合金 12,720 1,120 8.81%