... , metallurgy and construction machinery In Luoyan, henan heavy machinery spare parts produced according to the customer's drawings and specificationsThe material ... : carbon steel, alloy steel, stainless steel and so onThe spare parts can be used for mining machinery, metallurgy machinery and construction ... ×4.5m,4.5m×8.5m×3.5m Gas box car-bottom furnace, ø3m×6.5m Vertical furnace temperature difference, ...