Carbon Lodionings, kerarre a cikin Astm A105, ana amfani da kullun don aikace-aikacen bututun. Wadannan abubuwan da aka kirkira na carbon na carbon na carbon na carbon (gami da fannonin, su, da bawaye, da sauransu) ana amfani dasu don sabis na yanayi. A105N, wanda aka zaba tare da Sami ¡¡± ±, yana nuna cewa za a samar da abin da aka suturta a cikin yanayin al'ada. Idan an yi amfani da gunaguni don aikace-aikacen bututun Asme BPVC ko ASme B31, kayan zai zama daidai daidai da Sa-105 ko Sa-105N. A takaice, da zafi magani na al'ada rarrabe A105 daga A105, ko SA-105 daga Sa-105. Astm ATM A105 flanigaddamar da flanges ne. Bayani na iya haɗawa da maki daban-daban na kayan ƙarfe na bakin karfe da aka gina. Flanges na da ke haifar da carbon karfe kuma ana nufin don sabis na zazzabi.