Features: * Soxhlet extractor is extracted by the extraction tube,condenser, extraction flask,composed of three parts, the extraction tube are respectively on both sides of the siphon pipe and connecting pipes. * High borosilicate glass has very low thermal expansion coefficient. * Melting point up to 800 degrees, temperature difference fusions, low coefficient of thermal expansion, stable thermal deformation properties. * Made of good quality material, grinding mouth feels smooth and smooth, good sealing performance and smooth joints.