There is no difference in essence, only the difference of qualification certification. That is to say, when the country conducts qualification certification, the primary 140 words/minute is called the speed recorder, and the intermediate 180 words/minute is called the speed recorder. The formal training institution in Chengdu is Chengdu Jincheng Vocational School Address: 6th Floor, Training Center, No.6 Sandongqiao Street, Chengdu, Sichuan Province. This is a specialized training institution.