Na-achọ mma siri nri kacha mma? Eleghị anya ọzọ: Emere ya site na ihe kachasị mma nke ihe a kpọrọ mmadụ mara, a na-eji ezigbo igwe eji eme ihe eji eme ihe na Japanese 10Cr15MoV “Super-Steel” iji hụ na mgbanwe na njigide ihu kachasị na-enweghị ntugharị ma ọ bụ nbipu. Ngwongwo 66 nke nnukwu carbon igwe anaghị agba nchara Damaskọs nchara na-agbakwunye mma yana nkwụsi ike megide nchara na corrosion.
Raara onwe ya nye iji nyere ndị ahịa aka idozi nsogbu ha kacha sie ike na nsogbu teknụzụ.
Biko dejupụta fọm dị n'okpuru ebe a, ndị otu ahịa anyị ga-akpọtụrụ gị n'oge na-adịghị anya.
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