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