ross recessed truss head screw的意思|示意
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罗斯槽桁架头螺钉
ross recessed truss head screw的网络常见释义
十字槽介子头螺钉 十字槽沉头机丝牙螺钉 Cross recessed countersunk head 十字槽介子头螺钉 ross recessed truss head screw 外六角三角牙螺钉 hexagon head triangular screw ..