5-100pcs Copper Solid Rivets M1.5 M2.0 M2.5 M3 M4 M5 M6 Knock Flat Head Rivet Flat Head Copper Rivets Solid Brass Rivet GB109

5-100pcs Copper Solid Rivets M1.5 M2.0 M2.5 M3 M4 M5 M6 Knock Flat Head Rivet Flat Head Copper Rivets Solid Brass Rivet GB109

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