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Na-adọta igwe anaghị adị ọcha s31803 na-egosi ihe Njirimara nke jọgburu onwe ya. Usoro s31803 na-enweghị ike nwere ike dị elu, ezigbo nguzogide na-enwe sọlfọ na oke mmetụta siri ike.
Duxex (na-ezighị s31803 \ / s32205) mkparị dị ka rods rods (ASTM A276 \ / ASTM A479), nwere nguzogide nke ukwuu. Mgbakwunye uzuzu \ / anaghị eji nchara nchara (en 1.4462)) na-eguzogide ọgwụ na corvice na corvice na corvice na corvice na corvice na corvice na corvice na corvice na corvice na corvice na corvice na corvice na corvice na corvice corrosion na corvice.
Super duplex na-enweghị isi s32760 bụ otu n'ime Super Super Duplexx nke ahịa. Ọkpụkpụ s32760 bụ igwe anaghị agba nchara maka iji gburugburu corrosine, na mgbakwunye w na cu na-enweghị isi s32750.