H-economizer flash resistance vuam txheej txheem siv, vuam seam tom qab tus nqi siab ntawm fusion, weld tensile zog, thiab muaj thermal conductivity zoo.H-economizer kuj tseem tuaj yeem tsim ob lub raj "ob chav H" hom fin tubes, nws cov qauv nruj, thiab tuaj yeem siv rau lub sijhawm ntev ntawm lub raj.