The present invention provides an apparatus and a method of a jointless universal serial bus (USB) 3.1 type-C plug shell mold and a jointless USB 3.1 type-C plug shell formed therethrough, wherein an upper mold (100) for a USB 3.1 type-C plug shell and a lower mold (200) for a USB 3.1 type-C plug shell are formed to prevent short-circuit caused by a joint and a loss of data, and manufacture a jointless USB 3.1 type-C plug shell of good quality.
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