1. Ƙwararrun siyan keken dutse 1: kayan firam Babban kayan aikin firam ɗin shine firam ɗin ƙarfe, firam ɗin alloy na aluminum, firam ɗin fiber carbon, da nano-carbon Frames.Daga cikin su, nauyin ƙarfe na ƙarfe ba shi da haske.Tsatsa, an kawar da fasaha, amma ...
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