30000ml Heating mantle

30000ml/30L laboratory Digital heating mantlemade of alkali-free glass fiber insulation material, the Cr20Ni80 alloy wire spring installed in them, with aluminum silicate cotton by the vacuum shape of the hemispherical insulation body insulation. Can be widely used with hotplate stirrers, glasswares ,reaction bath for heating and Fractional distillation in schools , institutes, Large chemical plants ,ect.