TECEM ni mtoa ya bidhaa na huduma kama vile synchromesh pete, gearbox,gia shimoni,gear vitengo, miniature,mlolongo pulleys, mnyororo magurudumu, chuma,mpira maambukizi gia, kubwa kutofautiana,ratchets na gia ratchet pawls,,gear blanks, chuma,gear seti kwa ugonjwa wa viwanda,minyoo na gurudumu gear vitengo,rack na vitengo pinion gia,gia, shaba,gia, kutupwa chuma,gia, chuma,gia, chuma, mbaya,gia, ngozi,gia, nyuzi,gia, plastiki,gia, ebonite,gia, bevel,gia, bevel, ond,gia, bevel, moja kwa moja,gia, bevel, hypoid,gia, mviringo,gia, msokoto,gia, msokoto, cylindrical,gia, msokoto, mbili (herringbone jino),gia, msokoto, moja,gia, cycloidal,gia, kasi,gia, cylindrical,gia, kuchochea,gia, mdudu,gia, dunia,gia, ardhi,gia, mashine ya kukata,gia, molded,gia, usahihi, chuma,gia, ushujaa,gia, kimya,micro-gia, usahihi,gia, plastiki, usahihi, kwa ajili ya vifaa vya umeme na elektroniki,gia, kiwiliwili,gia, sintered,mitambo ya uhandisi - desturi kazi.