... Quality Products for various cars, trucks, buses, tractors, and trailers2) Spur gears, bevel gears, helical gears, worm ... fields as vehicles,mining machinery, engineering machinery, petroleum chemical industry and textilemachinery. A, Features:1) Material: steel2) Processing: ... available.C, Primary competitive advantages: 1) Excellent and high quality control 2) Prompt delivery3) Competitive price4 ...