Sentek ni mtoa ya bidhaa na huduma kama vile ukarabati na matengenezo ya boilers meli na pipework,bosun ya viti,bunks, meli berth,samani, mbao, kwa ajili ya meli,samani, chuma, kwa ajili ya meli,maisha jacket kuhifadhi makabati, bahari,samani, tubular, kukunja, kwa ajili ya boti,recorders, digital,recorders, line, viwanda,recorders, ngoma, viwanda,recorders, kalamu,recorders, waya,recorders, strip chati,recorders, mviringo chati,recorders, chati, paperless,recorders, walimpiga mkanda, viwanda,data recorders, mitambo, viwanda,recorders, joto nyeti karatasi, viwanda,recorders, umeme, viwanda,recorders, hatua, viwanda,recorders, x-y, viwanda,recorders, nyingi dalili, multichannel,recorders, juu-off, matukio na shughuli mashine,recorders, miniature,recorders, portable,recorders, cathode tube, viwanda,recorders, galvanometric,recorders, muda mfupi,recorders, ultraviolet (uv) mwanga boriti,recorders, potentiometric,recorders, instrumentation, multichannel, magnetic mkanda au filamu,kalamu na mifumo ya maandishi, chati kinasa.