Specification of the steel rolling machine( new, second) dia 650mm, 500mm, 450mm rough rolling mill group, dia 400mm rough rolling mill group and medium rolling mill group, dia 320mm medium rolling mill group, 300 medium rolling mill group, 280mm, 250 mm, 220mm finishing rolling mill group. ( Note: all the groups include motor, Reducer, Coupler, guide rail, roller etc. )