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1 Module Worm Gear Material: 40cr quenched and tempered heat medicine HRC25 Speed ratio: 1:20 /1:30 /1:40/1:50 Weight:1:50=230g





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1 Module Worm Gear Material: 40cr quenched and tempered heat medicine HRC25 Speed ratio: 1:20 /1:30 /1:40/1:50 Weight:1:50=230g




