[clarity]

Hi everyone i need your help. The headmaster asks us to teach the students some english relating to their career. The students are mechatronic majors. where can i find some material on speakin reading listening and writing on it. we do not need materials too profeesional but related it . Maybe we can do some topics on procuct design of sth, manufacturing sth ,inspection or testing, aftersale service , production noeration and control,market research, receiving clients and signing contracts,worker welfare. logo ect. I am not a native english speaker so it's hard for me to find useful and simple material. we need the students to use english in the process of their working and learing inthe workplace .Thanks for your help everybody.