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十字槽盤頭組合機(jī)絲牙螺釘 Cross recessed pan head Combination screws
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十字槽傘頭機(jī)絲牙螺釘 Cross recessed truss head screw (http://www.maijixie.com/product.asp?pid=109405)
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十字槽沉頭機(jī)絲牙螺釘 Cross recessed countersunk head screw
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