Fa'amalo R, S, F, K fa'asologa fa'aitiitiga fa'apitoa mo le YE2/YE3 fa'asologa tolu-vaega afi asynchronous o la'u kamupani ina ia fa'amalieina le mana'oga o le fa'aitiitiga lagolago mo faitoto'a.I totonu o le faʻamaufaʻailoga pito faʻapipiʻi ma le faʻapipiʻiina o loʻo faʻaleleia atili ma tulafono faatonutonu i le faʻataʻitaʻiga tutusa ma se eseesega o fimnge ma le pulou faʻapipiʻiina, e faʻafeiloaʻi ai manaʻoga faʻapipiʻi eseese o lapopoa o.Solaction of I-shaped flange end cop, a xle of quenching and tempering treatment, i le taimi lava e tasi, faʻateleina le lelei o le benring, e mafai ona faʻaleleia le gafatia, faʻateleina le saogalemu ma le ola tautua o le afi.