Ring for fixation of packing tool for film taking-up reel, cylindrical member of packing tool for film taking-up reel and packing tool for film taking-up reel
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High speed winding bobbin
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High speed winding bobbin
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Luminaire
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Preparation of fishing float made of crystalline synthetic resin
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Manufacture of bobbin with flange
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Method of cutting the tail end yarn of full bobbin
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Pillar body by joint cylindrical body in synthetic resin
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Method of and apparatus for connecting coupling cylindrical body with synthetic resin and coupling cylindrical body