Nga hokonga ngaio o te ngongo koranu, ngongo koranu pehanga teitei, ngongo koranu 12Cr1MoV, ngongo koranu 15CrMo, ngongo koranu 10CrMo910, ngongo koranu P11, ngongo koranu P12, ngongo koranu P22, ngongo koranu T91, ngongo koranu P91, ngongo koranu 42CrMo, ngongo koranu 35CrMo , Hastelloy ngongo, WB36 ngongo koranu, Whakarato ngongo maitai koranu hou...
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