The first batch of plastic parts finally came out, assembled with other metal test parts, doing the 1st time function test.

第一批的塑胶零件终于试出来了，与其他试做的零件组成第一支笔做功能测试。

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However, Raspberry Pi announced on its blog that some of the parts making up the first batch of the model Bs had been accidentally switched in the Chinese factory where they are being made.

BBC: Raspberry Pi buyers face delay after factory mistake