our company have many large-sized machines for equipment processing such as: dia. 6.5 and 16m annealing furnace and dia. 8m  and 6.8m as well as 5m hobbing machines imported from Russia, dia.4.6 and 15m floor lathe, dia.8m vertical lathe exported from Russia, horizontal sumerged arc auto welding machine, dia 3.2 and 90mm 3-roller bending machine and so on.