THE UNIT RECOMMENDED TO USE: Auto sqare parts{Brake oil tube , bumper,Muffler, seats, etc.}motorcycle manufacturing,Fitness equipment, air conditioning, refrigeration, bicycle industry, steel furniture, bathroom equipment and other industries. Model DW75NC DW89NC DW115NC DW130NC Min bending R for carbon pipe is :1.5D ∅76.2×3.0t ∅88.9×3.0t ∅115×6.0t ∅130×8.0t Min be...