全铜螺杆(牙条)GB/T15389-1994非标定制螺柱牙棒 ¥5.00 铝合金螺杆(牙条)镀锌钝化GB/T15389-1994非标定制螺柱牙棒 ¥5.00 锌合金螺杆(牙条)镀锌钝化GB/T15389-1994非标定制螺柱牙棒 ¥5.00 纯铜螺杆(牙条)GB/T15389-1994非标定制螺柱牙棒 ¥5.00 纯铜米制螺纹牙棒DIN976-1-2016非标定制螺柱牙棒 ¥5.00 304不锈钢螺杆(牙条)GB/T15389-1994非标定制螺柱牙棒 ¥5.00