Herringbone Gear Good quality and excellenct service. Herringbone Gear1) Quality Products for various cars, trucks, buses, tractors, and ... ) Spur gears, bevel gears, helical gears, worm gears, face gears, gear levels3) Standards: ASTM, DIN, EN, BS, JIS, ISOa1, Our ... and we can offer OEM services worldwide.2, Our quality GEAR products including spur gears, bevel gears, helical gears, wormgears, face ...