... : 6W, 15W, 25W, 40W, 60W,90W,120W,140W Features: 1) DC motor Dimensions of device: 60mm, 70mm, 80mm, 90mm, 100mm2) Power: 6W ... terms of small gear motor> in 2010;ZD developed China's first high-precision helical planetary gear reducer in 2011;ZD developed ... a robot-specific reducer in 2011.Honors:Ningbo’s well ...