MP3 car player,Support SD Stick USB, 1.competitive price and high quality 2.delivery on ... sorts of transmission systemmaterial and precision can be as requirementsProcessing: hot or cold forging, heatreatment(annealing, normalizing, carbonitriding, tempering) ... to be a group company with 1300 employees.The business covers car transmission car gear, motorcycle gear, car spare parts, garden machinery, ...