... of stainless steel. Caster(wheel) is made of heat-resistant Nylon material which is very durable. All racks ... ×24.5×1.5mm ) stainless steel tube 4" heat-resistant Nylon casters, rated 600°F , 500 lbs . ... for use in single or double oven 1Electric heat/diesel oil/Gas rotary rack oven16trays,18trays, ... 32trays,64trays Coal/wood heatrotary rack oven32trays2Electric heat/gas deck ovens1 deck 2 trays,3 ...