... , 2, 3, cutting machine, circle, 4, section circle machine.Powder equipment (4) :Sieve, 2, 3, magnetic separation conveyor, vibrating ... and electric control system, etc.Roller materials is alloyed iron, with high hardness and resistance, roller temperature adjusting device ... roller are after annealing processing, hardness higher than ordinary iron roller 30%This is our company' heat treatment furnace ...