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Get Rapid Prototypes by Using Chinese Prototype Manufacturers
It is typically not enough to check every detail of a new product design by simply putting it on paper (sketches) or in 3D drawings (computer-aided design). Making a prototype is a crucial stage in creating a new product. A prototype is a detailed representation of the finished product. A crucial step between design and production is having a prototype produced for your product.

You will undoubtedly need to look for Chinese prototype manufacturers to have rapid prototype made in China to create physical renderings before moving further with the fabrication of tooling, certifications, component purchasing, and manufacturing.

Why is a rapid prototype needed?

You may require a product concept to present to investors and start a Kickstarter campaign. Or you may need to conduct testing (including usability test) and confirm the design prior to going into production, you probably need a prototype that is like the final version of the product.
https://www.maplesourcing.com/get-rapid-prototypes-by-using-chinese-prototype-manufacturers.html