Guangzhou S.great Electronic Technology Co., Ltd1. An old brand company located in Zhuhai has 20 years industryexperience2. Our factory covers over 3000 square meters, has more than 200staffs including a 15 experts' R&D Group, nearly 300 thousandpcs toner cartridges production per month.3. We have great advantage in manufacturing toner cartridgeespecially in copier toner cartridge and copier empty tonercartridge.4. All our products has a warranty of 24 months, and promise 1:1replacement for defectives Which spread over 60 countries in theworldwide.