I-workshop ye-SMT patch PCBA welding line Ulayini wedivayisi I-proofing coating emithathu I-proofing coating emithathu Umugqa wemojuli Qedela uhlelo lokulawula Ulayini wedivayisi Umugqa wokugunyaza Ulayini wedivayisi Qedela uhlelo lokulawula Qedela uhlelo lokulawula Indawo yokuhlola i-R & D Igumbi le-anechoic lamamitha amathathu Igumbi le-anechoic lamamitha amathathu