The chamber structure stainless steel plate is processed by CNC machining, the appear­ ance is beautiful with modern style, using non-reaction mechanical handle, safe and easy operation; Internal wall using matte stainless steel SUS#304, external wall apply A3 steel panel with spraying coat, improving the outside neatness; suitable for electrical, electronics, machin­ ery and other products, parts, materials, etc. under high or low temperature conditions on the products, parts, materials quality and reliability testing