gearbox,worm gear reducer,reducer Model no.: NMRV/NRV025, 030, 040, 050, 063, 075, 090, 110, 130 gearbox,worm gear reducer,reducer Features: 1) High quality aluminum alloy die ... cast gearbox 2) High accuracy worm gear and worm shaft 3) Less noise and ... HF, SSJ, HF, BW, CHMR, ESV and so on. worm gear reducer