1.13 year experience, 2.Certificate ISO9001.2008, 3.Material: Bearing steel, 4.Various size and type SFT Pillow ... ,SBAK204-208, HCAK201-212, SAAK204-210.(2)Size range: ID 20MM~75MM(3)Material: GCR15 steel , Carbon Steel and Chrome Steel.Insert ... : Shaft dia: 12~80 mm Metric and Inch size available,(3)Material: chrome steel, stainless steel, Thermoplastic, Zinc Alloy, pressed steel ...