Chongqing Vision Star Optical Co., Ltd (hyvisionstar. En. Made-in-China. com) is a professional ophthalmic equipment and optical instruments manufacturer in China. Since 1999, we have been manufacturing and selling Slit Lamp, tonometer, Retina Camera, Fundus camera & FFA, Ultrasound (A scan, AB scan, Pachymeter, Biometer & Pachymeter), Auto Perimeter (Vision Field Analyzer, Projection Perimeter), Phasco Emulsifier, Corneal Topography, Ophthalmoloscope, Retinoscope, Operation Microscope, Visual Electro System, OCT, Auto refractometer, Auto Ker-Refractometer, Auto Lensmeter, Auto Phoropter (view tester), Chart Monitor, Near Vision Tester, Combined unit (combined stand and chair), Keratometer, Trail Frame, Trail Lens Set, Auto Edger and so on.

SinoColor Co., Ltd. is a high-tech enterprise specialized in developing and manufacturing industrial printing equipment.

WITSON is a distinguished Chinese manufacturer and exporter of car DVD players, boasting an impressive 21-year history since its establishment in 2004.

Lonwin industry group limited. Is a comprehensive chemical enterprise which mainly integrates development, production, marketing, import and export business. The company is located in the beautiful tourist city- Shanghai with predominant industrial environment and commercial environment. As a technology innovative and service professional enterprise, the company mainly engages in global pharmaceutical, chemical and biological service.

ZWNVA (Shenzhen Aotsr Technology Co., Ltd) are committed to produce high-end, cost-effective auto parts, like CAR DVD system, CAR RADIO FASCIA, CAR DVR, CAR WIRELESS CHARGER and so on. We have factoriesand independent R&D teams to design and produce exclusive private model products with customized configuration.