1. Kayan aiki:12Cr1MoVG, wanda ya dace da ma'aunin ƙasaGB5310, kayan 12Cr1MoVG, amfani: bututun boiler mai matsin lamba mai ƙarfi

2. Kayan aiki:15CrMoG, wanda ya yi daidai da ma'aunin ƙasa na GB5310, kayan shine 15CrMoG, ana amfani da bututun tukunya mai matsin lamba mai yawa, ma'aunin Amurka mai dacewa shineA213/A335, kayan shineT12/P12, ana amfani da bututun ƙarfe mara shinge na boiler, wanda ya yi daidai da ma'aunin Jamus na DIN17175, kayan shine 13CrMo44, amfani yana da juriya. Bututun ƙarfe mai zafi mara shinge. Ma'aunin Turai mai dacewa shine EN10216-2, kayan shine 13CrMo4-5, amfani: bututun matsi, lambar HS ita ce 7304599090.

3. Kayan aiki: 1Cr5Mo, wanda ya dace da ma'aunin ƙasa shineGB9948ko GB6479, kayan 1Cr5Mo, amfani, bututun ƙarfe mara sulke don tukunyar ruwa mai matsin lamba mai yawa, wanda ya yi daidai da ma'aunin A213/A335 na Amurka, kayan: T5/P5, amfani, bututun ƙarfe mara sulke don tukunyar ruwa, wanda ya yi daidai da ma'aunin Jamusanci EN10216-2, kayan X11CrMo5, amfani, bututu mai ɗauke da matsin lamba, lambar HS ita ce 7304599090.