galvanized iron mush-room head bolt的意思|示意
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镀锌蘑菇头螺栓
galvanized iron mush-room head bolt的网络常见释义
白铁圆头螺栓 ... 双半径半圆头铆钉窝子 double radius button head snap 白铁圆头螺栓 galvanized iron mush-room head bolt 盘头铆钉,盆头铆钉,平头铆钉 panhead rivet ...