Umbhobho wentsimbi obizwa ngokuba yiSpiral usetyenziselwa umbhobho wentsimbi ongeyotyhefu ongu-8710 ojikeleza amanzi okusela, kwaye usetyenziswa kakhulu kumbhobho womgangatho wamanzi.Sisebenzisa olu hlobo lombhobho, IPN8710 umbhobho wamanzi okusela wokulwa nomhlwa, i-IPN8710 ifakela umbhobho wangaphakathi (amanzi okusela) anti-corrosion, umbhobho wentsimbi i...
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