C-Double Tec. was found in 2006. We offered OEM and OEM services providing end-to-end product development services from prototyping, design, manufacturing, packaging, retail distribution, logistics, IP protection, branding and CRM. And we have been engaged in development and production of innovated products covering ranges of optical, electronics, audio and video products. We are the first company launched Smartphone add-on lense, we made the first 360 rounding mini speakers in the world, we...
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