黄铜螺杆铜牙条铜全牙螺丝杆M4M5M6M8M10M12M14M16M18M20*1000mm

黄铜螺杆铜牙条铜全牙螺丝杆M4M5M6M8M10M12M14M16M18M20*1000mm

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磐石五金螺丝
广东 深圳