metal screw with flat head 金属平头螺钉
metal screw with half-round head 金属半圆头螺钉 ; 金属圆头螺钉
sheet-metal screw 金属板螺钉
sheet metal screw 金属板固定螺钉 ; 剪板机
metal screw pump 金属螺杆泵
Metal Screw Pipe 金属螺纹管
Ordinary metal screw 普通金属螺钉
enameled metal screw cap 涂料金属螺旋盖
protected metal screw cap 释义金属防护式螺盖
metal interference screw 金属界面螺钉
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