● Washer na-agbanwe agbanwe na-eweghachi ngwa ngwa nke ọma na ọnụ ahịa kacha nta.
● Mmiri ozuzo na mkpokọta teknụzụ mgbasa ozi.
● Mmanye Circulation mmanye: njikwa etiti nke nrụgide mmanụ, mma mmanụ, oke mmanụ, mkpochapụ na wdg;nkwa nke ogologo oge kwụsiri ike na-agba ọsọ.