1,Microcrystal Glass Faceplate 2,High Quality Crystal Plate 3,Stainless Steel Suitable for factory, school, ... \50Hz Dimensions:400*500*150mm Features:Economic efficient: heating with the principle of electromagnetic ,heat faster, thermal efficiency is ... noise design (below 45 db), optimized kitchen environment;Safety: security protection such as waterproof, prevent smoke, prevent leakage, prevent ...