First-class speed ratio 3-10(please note the speed ratio when shooting) Second-class speed ratio 9-40(please note the speed ratio when shooting) Third-class speed ratio 48-512 Second-class speed ratio 30 Second-class speed ratio 50
Tooth surface hardness:
Hard tooth surface
Layout Form:
Coaxial
Series:
Level 1
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Items weight estimation 0 g, subject to actual weight
Calculated shipping includes heavy logistics. Order more, shipping costs will reduce
to 50% discounts!
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