Ivalve licandelo elisisiseko lenkqubo yombhobho kwaye ikwindawo ebaluleke kakhulu kushishino loomatshini.Inoluhlu olubanzi lwezicelo.Kuyinxalenye eyimfuneko kubunjineli bokuhanjiswa kolwelo, ulwelo kunye negesi.Ikwayinxalenye ebalulekileyo yoomatshini kushishino lwamandla enyukliya, kwishishini lepetrochemical, ubonelelo lwamanzi kunye nokufudumeza, kunye nemimandla yoluntu.Idatha yoshishino lwevalvu yehlabathi kule minyaka mithathu idlulileyo, imveliso yevalvu yehlabathi ibiyi-19.5-20 yeebhiliyoni zeeseti, kwaye ixabiso lemveliso liye landa ngokuthe ngcembe.Ngo-2019, ixabiso levalvu yehlabathi laliyi-64 yeebhiliyoni zeedola zaseMelika, ngo-2020, ixabiso levalvu yehlabathi lalingama-73.2 eebhiliyoni zeedola zaseMelika, kwaye ngo-2021, ixabiso levalvu yehlabathi lalingama-76 eebhiliyoni zeedola.Kwiminyaka emibini yakutshanje, ngenxa yokunyuka kwamaxabiso ehlabathi, ixabiso lokuphuma kwevalve liye landa kakhulu.Emva kokuthotywa kwexabiso lokunyuka kwamaxabiso, ixabiso levalvu yehlabathi liye lahlala limalunga ne-3%.Kuqikelelwa ukuba ngo-2025, ixabiso le-valve yehlabathi jikelele liya kufikelela malunga ne-US $ 90 yebhiliyoni.
Kwishishini le-valve yehlabathi, i-United States, iJamani, iJapan, iFransi kunye neTaiwan, iChina iyinxalenye yokuqala yamandla apheleleyo, kwaye iivalve zabo zihlala kwimarike ephezulu yoshishino.
Ukusukela ngeminyaka yoo-1980, iUnited States, iJapan, iJamani, iSouth Korea kunye namanye amazwe ngokuthe ngcembe atshintshe amashishini aphakathi nakumgangatho ophantsi kumazwe asakhasayo.I-China lelona lizwe linoshishino lwevalvu olugxile kakhulu nolukhula ngokukhawuleza.
Okwangoku, iye yaba lelona lizwe likhulu kwishishini levalvu kwihlabathi malunga nemveliso yevalvu kunye nokuthunyelwa ngaphandle, kwaye sele isiya kwilizwe levalve elinamandla.
Ixesha lokuposa: May-06-2022