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Double circle	Rub flower (tooth) processing BL-17	Quartet deduction	Precision circlip
Metal bracket	Brake spring	Iron ring	Stainless steel straight shaft
Iron ring	Precision sheet forming	Metal sharpening	Three-dimensional U-shaped needle
Double torsion spring	Iron coil	Rub the flower stick	R-shaped pin
Iron coil	Switch accessories	Metal needle	Torsion pin