spanner for square screw 方螺钉扳手
brass square screw hook 黄铜螺丝曲尺钩
a er for square screw 方螺钉扳手
square thread screw pump 矩形螺杆泵 ; 矩形螺杆 ; 长方形螺杆泵 ; 矩形
screw pump with square thread 方形螺杆泵
bra square screw hook 黄铜螺丝曲尺钩
square-head screw 方头螺钉
spanner r for square screw 方螺钉扳手
iron square head screw 方头铁螺钉
Top view of square head set screw. Selection box represents thread diameter.
方头螺钉的俯视图。选择框代表螺纹直径。
The strength of a screw fastener increases with the square of its diameter.
螺丝紧固件的拉张力随其径长呈平方增长，其扭矩则呈立方增长。
The main products are Confirmat screw, European screw, Square neck screw, Shelf support, and so on.
主要产品有家具螺丝，欧洲螺丝，方颈螺栓太阳能专用不锈钢螺丝，双头螺栓，板托等各种非标件。
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