... buses, tractors, and trailers2) Spur gears, bevel gears, helical gears, worm gears, face gears, gear levels3) Standards: ASTM, DIN ... offer OEM services worldwide.2, Our quality GEAR products including spur gears, bevel gears, helical gears, wormgears, ... and textilemachinery.A, Features:1) Material: steel2) Processing: forging, machining (shaping, hobbing), heat treatment, annealing,quenchingB, Packing ...