... of hot wind is circulated in the oven with high thermal efficiency ,less energy consumption , The oven is equipped by the adjustable air ... whole machine runs in stable condition ,low noise , self-control temperature , easy installing and maintaining ,and wide application.Technical DataModelJB-B ... 1, One tray could bear about 3 KG food material.2, This machine has 48ray3, All material is SUS304/316l. ...