Qalabka bulsheedka toosan waa naqshad cusub, iyada oo loo marayo tikniyoolajiyadda howsha wanaagsan iyo alaabada ceeriin ee tayo sare leh, waxqabadka bulkhead si toos ah u habboon illaa heer sare. Waxaan ku qumman nahay faahfaahin kasta oo ku saabsan bulkhead-ka si toos ah , dammaanad ka qaad heerka tayada, si loo keeno khibradda wax soo saarka ee kaamil ah. Yuyao Ruihua Hardware Factory waa xirfadle soo saare u xilsaaran Shiinaha si oo toos ah u ah saliida.