... 4.Fast shipping NRV063 VS Small Aluminium Alloy NRV Gear Reducers with VS Worm Extension Shaft Specifiction: ... AlloyWorm Gear-Copper-10-3#Worm-20CrMn Ti with carburizing and quenching, surface harness is 56- ... midpoint of output shaft.When the reducer is with double output shafts,the resultant radial power ... order, our team will confirm with you about color, package,method of payment and delivery, then a ...