Bawul ɗin ƙofar hatimi mai laushi, wanda kuma aka sani da bawul ɗin wurin zama na roba, bawul ɗin hannu ne da ake amfani da shi don haɗa kafofin watsa labarai na bututu da masu sauyawa a aikin injin kiyaye ruwa. Tsarin bawul ɗin ƙofar hatimi mai laushi ya ƙunshi wurin zama, murfin bawul, farantin ƙofar, murfin matsi, kara, abin hannu, gasket, ...
Kara karantawa