High Frequency Ferrite Transformer,Electric Transformer,Core Type Transformer,Frequency Transformer IHUA INDUSTRIES CO.,LTD. , https://www.ihua-coil.comTo meet the requirements of the green indoor environment, attention should be paid to the design principles, design schemes, construction procedures, selection of decoration materials and indoor air quality inspection of interior decoration: 1 During the decoration, indoor decoration and decoration materials conforming to national standards should be used as much as possible. Is the root of reducing the amount of harmful substances in indoor air