As one of the biggest manufacturer and seller of office consumables,ASC has build a complete R&D and testing laboratory.And own a professional R&D team to develop new products.We successfully launched our own brands”ASC””语印””艾斯克””aisk”etc.In 2019,our new technique of “Physical method of dey color and its method”succeed in applying for the patent in the state intellectual property office,and made up the blank in this line.