1.Roll Bearing Ball Mill 2.material: GCr15SiMn or G20Cr2Ni4A 3.ISO9001:2000 4.R&D capacity 5.OME service Why you need LDB! 1.The company has more than 50 senior engineers,mechanicaltechnicians, and assistant tech-nicians, accounting for 29% of the total wokeforce; the company specializes in designing and developing of new, high precision, advanced bearing products and processing methods ofinnova-tion and improvement, proficient in grinding equipment design, production, optimized and impro-ved. 2.All LDB products meet or exceed ISO standards and tolerances. 3.LDB produces standard and custom slewing bearings and rollering bearing. We also produce custom bearings designed for your special needs.