大直径QAl9-5-1-1铝青铜圆棒

轴衬轴套用QAl9-5-1-1铝青铜棒

QAl9-5-1-1铝青铜挤压棒 定尺零切

高强度QAl9-5-1-1铝青铜棒

国标QAl9-5-1-1耐热铝青铜棒

高强度耐热QAL5铝青铜棒

批发QAL5铝青铜棒 铝青铜车光铜套

轴承加工用QAL5耐磨铝青铜棒

QAL5走心机用铝青铜棒

国标QAL5铝青铜挤压棒