1. Roller's material is made from alloy tool steel by precise griding machining surface precision is lower

     than 0.006mm, its hardness is within HRC 60°~62°.

2. Rollers work by compound gear all system rorated itself will not damage surface of material.

3. The bearing supprot wheel located between the roller, thick aluminum sheet will be able to straighten in

     highly performance.

4. SL model，straightening data from 2 points synchronous lifter & dial indicator 2set

     ( 4pcs of screw & dial indicator ) for adjusting, it's easy to operate clearly.

※ Custom-made special specification is welcome