Trolley Type T5 Aluminum Heat Treatment Furnace Customize service is available in full range of sizes. Great temperature uniformity. Temperature Uniformity Good temperature uniformity Automatic Systems PID temerature controll, automatic powered control entrance door and trolley in/out. Furnace shell Solid sturdy steel construction furnace shell. Great Air Circulation Excellent pressured air circulation system. Superior Materials Best quality of refractories and isolation materials.