I'm an ex-Srilankan Airline staff & eligible to get free tickets from UL .

You go there for sightseeing purpose, right? If yes, you should apply for a tourist L type. The first step is to prepare the relevant required materials including the passport and copy of its data page, the completed application form and a passport-style photo, a letter from a local travel agency, the invitation letter from Chinese tourist bureau, and recent 3-month bank statement as well as travel itinerary. Next, submit the application to the embassy of PRC to apply for it.