bolts round head with oval neck 中文意思是什麼
bolts round head with oval neck
解釋
圓頭橢圓頸螺栓-
Fish bolts - part 1 : with round head and oval neck
魚尾板螺釘.第1部分:半圓頭和橢圓頸 -
Bolts, round head with oval neck
圓頭橢圓頸螺栓
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