Sa ya 12.9 Carbon Karfe Hex Barr olt Cikakken Cikakken Din933 M16
Wannan ya dace sai ya zama wani ɓangare na tsarin jigilar ruwa (mai, gas, tururi, sunadarai, ...) a cikin aminci da ƙarfi ko kuma nesa ko kuma nesa ko kuma nesa ko kuma nesa ko kuma nesa ko kuma nesa ko kuma nesa ko kuma nesa ko kuma nesa ko mai nisa.
Astm A420 takamaiman bayani ya shafi low-zazzabi butt don dacewa da ASTM AS333 Gr.3 da Astm A333 Gr.33 Gr.33. 6 bututu; Astm A860, When22, When560, When600 na samar da yawan amfanin ƙasa da ya dace da yawan amfanin ƙasa api 5l gr. X42, X52, X56, bututun X60. Astm Pip Pip Pip na WPB yana nufin cewa bututun da aka dace da ASTM ANMB kuma ana amfani dashi don tsarin matsin lamba na more-zazzabi. Astm A234 daidai yake da bututun da ya dace da kayan. WPB ne na ƙarfe a inda Weldable, b shine grading b da p tsaye don matsin lamba. Ta haka ne ke nufin ƙarancin yawan amfanin ƙasa. Astm AT234 WPB shine daidaitaccen tsari don bututun bututun ƙarfe da ya haɗa kayan kwalliya na carbon da kayan abinci don gudanar da yanayin zafi don kai tsaye da manyan-zazzabi. Astm A234 WPB SC 40 Fittings Covers Carbon Karfe B16.9, MSS-SP-73, da Mss-SP-97.
