... system .With so many cherits,our rollers are widely used in mining, power plants,cement mills,salt plants, manufacturings,harbors, ... Tube are simultaneously machined and chamfered. 5.Bearing: Single & Double Row Deep Groove Ball Bearing 2RZ&2Z with C3 clearance. 6.Seals: ... gas shielded arc welding end .For more details, please contact me directly as following. Wish a future-cooperation! Yours,AliceMiss ...