What’s the difference between plastic injection molding and 3D printing?

Wifi box plastic injection mould production

How can we order a good chair mould? To order a high standard chair mould, we have to select the mould company very carefully. Almost most of the mould company, they can make the chair mould, but we think there is seldom of the mould companies can make a good chair mould. Please ask below questions ......

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