... different type be assembled together gear box,gearbox two different type be assembled together Features:1) High ... quality aluminum alloy die cast gearbox 2) High accuracy worm gear and worm shaft 3) ... :TXF, TKF, JMRV, JRV, JRV-VS, SMRV, WGR, RSTV, RV, MGW, MV-NMRV, DMRV, EWM, MKV, K-MG MGW, WPA ... , SSJ, HF, BW, CHMR, ESV and so on. helical gearbox,gearbox (PC series)