ʻO ke ʻano piha piha o ka puna me ka pale pale pale

A28H-10C, A28Y-10P, A28Y-16P, A28Y-25P, A28Y- 40P

A28Y-16C, A28Y-16R, A28Y-25R, A28Y-40R

Hoʻohana ʻia ke ʻano A28H no nā pono hana a me nā paipu o ka lewa, N₂, H₂ puhi kinoea huehue a me nā mea waena i emi ke ana o ka mahana hana ma mua o 200 ℃₈ Hoʻohana ʻia ke ʻano no nā pono hana a me nā paipu o ka maikaʻi me ka medium corrode ka mea i ʻoi aku ka mahana o ka hana ma mua o 200 ake. E lawe no nā mea pale pale kaomi keu.