... Annealing FurnaceTrolley-type annealing furnace is a kind of annealing furnace, it is a chamber-shaped industrial furnace with fixed hearth and ... furnace is within 1200°C, and that of intermediate temperature furnace is within 950°C, of low temperature tempering furnace is within 650°C ... lamina, high-speed steel, tool steel, car bridge, gear box of diesel engine, mining machinery, bridge wall of loader, ...