Shellmaterial:Adoptingaluminumalloy.Innermaterial:Adoptingcopperpipepressure-typeproduction.Bracketmaterial:Adoptingdomesticgoodnessgalvanizedsheet,sprayingplastics,highlycorrosion-resistant.Vacuummaterial:AdoptinghighborosilicateglassandUltra-catheterconfiguration.Specificati***:100L,200L,300L,400L,500L,)