... of fixed-length : 50-100MMRolling unlimited range of fixed-length rolling :unlimited ¢ 2 - ¢ 12 Wheel diameter : ¢ 100MM ... Rolling Machines:1, Specialized for metal tubes designing, use triangle support, it can guarantee the work pieces real roundness when by rolling ... is optional.7, rolling shape: rolling thread, textured, ruled, rolling light, cross knurling, roll bars, rolling groove, and roll ...