Foshan Nanhai Optical Grinding Tool Factory, formerly known as Foshan Qinchang Anti-skid Patches Factory founded in 1999, was renamed Foshan Nanhai Optical Grinding Tool Factory in September 2007.
Foshan Nanhai Optical Grinding Tool Factory, formerly known as Foshan Qinchang Anti-skid Patches Factory founded in 1999, was renamed Foshan Nanhai Optical Grinding Tool Factory in September 2007.