Our universal joint are of high quality. From forging to assembly, we pay attention to good-looking appearance and exact machining via strict tolerance control. They are of eligible heat-treatment and perfect packaging Features: 1, Product model:5-1309x Material: 20Cr or 20CrMnTi steel 2, Skin hardnesses: 58-64HRC 3, Internal degree of hardness: 20Cr:25-45HRC 20CrMiTi:33-48HRC 4, Brand: SJ or as request 5, Delivery : in 45 days or according to customer request 6, Payment: L/C,TT 7, Supply abilities: 200,000 pieces each month 8, Package: Usually pack in our factory or according to the customer request Inside:The plastic bag and paper box carries Outside: Big paper box and wooden crate or wooden tray .