(1) Gabatarwa zuwa kayan bututun ƙarfe mara karfe:
GB / t8162-2008 (bututu mara kyau don amfani da tsari). Galibi ana amfani da shi don tsarin janar da tsarin injiniya. Kayan Wakilinta (Grades): Carbon Karfe No. 20, Karfe 45 Karfe; alloy Karfe Q345, 20CR, 20CR, 20CMO, 20CMO, 20CMO, 20CMO, 20CMO, 20CMMO, 4-35crmo, 42crmo, da dai sauransu.
GB / t8163-1999 (bututu mara karfe don jigilar ruwa). Galibi ana amfani dashi don isar da bututun ruwa a injiniya da kayan aiki manyan kayan aiki. Kayan Wakilai (Grades) sune 20, Q345, da sauransu.
GB3087-2008 (bututu mara karfe don matsi mai ƙarancin matsakaiciya). Da aka yi amfani da shi a cikin bututun ruwa don isar da ruwa mai matsin lamba a cikin ƙananan ƙananan filayen masana'antu da masu bushe gida. Abubuwan wakilai sune babu. 10 kuma No 8 Karfe.
GB / t17396-2009 (hot-mirgine bututu mara nauyi mara kyau don hydraulic props). Ana amfani da mafi yawan amfani don yin tallafi na hydraulic, silili da ginshiƙai masu nauyin hadin, kazalika da sauran silinda hydraulic da ginshiƙai. Kayan aikinta sune 20, 45, 27Sim, da sauransu.
(2) Amfani da bututun ƙarfe mara kyau: 1 4. Bututun anti-static don tsananin zafin wutar lantarki, da sauransu.