... decoiling inner diameter: 500-508mm;Feed-in platform: sending steel plates to platform, which could promise the products regular and ... the shape and accuracy of the products, it is adopted steel welding structure, electromotor reducer transmission, chain transmission, roller surface ... is: 0.05mm and the roller material is: 45# forged steel.Forming mould: this forming mould adopts punching mould (2 sets ...