上海地区二号铜价格58900-59100马达铜价格58900-59300黄杂铜价格39950-40150破碎黄铜价格43250-437501#光亮铜线价格62800-63000H62黄铜边料价格44850-45350H65黄铜边料价格46150-46650
废钢价格