... and cutting dies.(4) Roll forming machineStructure 1:Raft structure, motor drives, chains transmit.The roller adopts combination structure, ... software, and has FEA analysis, which can promise the roller precise.Roll forming step: about 17 stepsRoller material: Cr12, quenching ... , and has FEA analysis, which can promise the roller precise.Roll forming step: about 17 stepsRoller material: Cr12, quenching ...