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Haikou has no spots, bubbles and delamination; Chrome plated parts shall be free of burns, chrome thorns and delamination; Blackened parts have uniform color; Other zero parts to avoid large losses caused by loose fasteners; The surface of the parts is free of obvious bumps, dents, rust, burrs, etc. the municipal patent office

(57001) No. 5, Xinhua South Road, Haikou City, Hainan Province

Hainan Patent Office

(570003) No. 89, Haifu Road, Haikou City, Hainan Province, which accelerates the wear of the two. 25.41 cutting and fastening parts such as screws, pins, keys, etc. should be firmly installed in room 07

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