Oriental Inspiration Limited (OIL) is a Hong Kong based company. We engaged in developing new products to worldwide markets since 2002. Our manufacturing base located Dongguan China and approved with ISO system, ICTI certificate. With strong R&D support ...

The Trace Optical Co. Ltd. is the leading technology enterprises in optical products manufacturing , and have a comprehensive strength of design professional production . company level research application aspheric surface technology, optimization ...