1 eeg shan ciddiye Waqtigan xaadirka ah, asal ahaan waxa jira saddex nooc oo ah alaabta shan-cidiyeed ee kuraasta: birta, naylon, iyo aluminium alloy. Marka la eego kharashka, aluminium alloy>nylon> steel, laakiin alaabta loo isticmaalo calaamad kasta waa kala duwan yihiin, oo aan la odhan karin sabab la'aan in aluminium alloy waa b ...
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