... effect 4.12 year rich experience industrial gear (worm gear, bevel gear, helical gear) brief introduction:1.Specialize in producing various ... gears: straight gear, helical gear, bevel gearGear modulus: M1~M20Tooth number: above 9 teeth2.Various non ... : M1~M20Tooth Number : Unlimited industrial helical geared motor (worm gear, bevel gear, helical gear)