Bututun tukunyar jirgi
Bututun tukunyar jirgi
babban karfe
20G,15CrMoG,12Cr2MoG,12Cr5MoG,12Cr9MoG,T11,T22,T5,T22,T9,T91
daidaitattun samarwa
GB5310《 sumul karfe bututu don high-matsi tukunyar jirgi》
ASME SA213 "Ferrite mara kyau da austenitic gami da bututu don tukunyar jirgi, babban hita da musayar zafi"