About 2 Trademarks found that are owned by Wang Zhengru

Colorants for use in the manufacture of printing ink; Ink jet printer ink; Ink for multifunction electronic devices for use in copying, printing, scanning, video capture or transmitting documents and images; Marking ink for animals; Microencapsulated fragrance inks for flexographic printing; Primer oils for printing; Printing toner; Toner; Toner cartridges, filled, for laser printers; Toner cartridges, filled, for printers and photocopiers; Filled ink jet cartridges; Filled ink cartridges; Filled toner cartridges; Photocopier toner in cartridges; Printers' pastes; Printing ink; Printing inks, coatings, pigments and dispersions for use in the graphic arts industry; Thermochromic printing inks

The wording GSGSC has no meaning in a foreign language.