ZSY315 gear box three-stage cylindrical gearbox with hardened gear heavy duty speed reducer industry gearbox
ZSY315 helical cylindrical gearbox gear reducer gear box hardened tooth surface speed reductor for heavy machinery
ZSY315 gear reducer three-stage cylindrical gearbox with hardened gear ratio 22.5 helical gear speed reductor
ZSY315 reductor speed reducer with ratio 40 45 60 harden tooth surface helical transmission three stage gearbox
