10/20/30Pcs Duckbill Spacer Dia 16/19/25mm Bore 6/8mm Hollow Joint Round Tube Chair Fastening Washer Piece Plastic Curved Spacer

10/20/30Pcs Duckbill Spacer Dia 16/19/25mm Bore 6/8mm Hollow Joint Round Tube Chair Fastening Washer Piece Plastic Curved Spacer

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