Mea e fai ai le paipa u'amea u'amea: 12Cr1MoVG, 12CrMoG, 15CrMoG, 12CR2MO Ma le Cr5Mo , Cr9Mo , 10 cr9mo1vnb , 15 nicumonb5

Tulaga fa'atinoGB5310-1995, GB6479-2000,GB9948-2006 fa'apapa'u o le penisini, DIN17175-79,ASTM SA335, ASTM SA213, JISG3467-88, JISG3458-88.

O oloa e talafeagai mo paipa uʻamea e leai ni soʻoga e teteʻe atu i le vevela maualuga, vevela maualalo ma le ele e faʻaaogaina i le alamanuia o le suauʻu, vailaʻau, eletise ma le paila.