round head machine screw 中文意思是什麼
round head machine screw
解釋
圓頭機器螺絲-
Nickel - plated mild steel round head machine screw
鍍鎳低碳鋼圓頭機器螺絲 -
Brass - plated mild steel round head machine screw
鍍黃銅圓頭軟鋼機器螺絲 -
Galvanized mild steel round head machine screw
鍍鋅圓頭機器螺絲
分享友人