HG/T 3139.3-2001 HG/T 3139.3-2001 refers to the vertical decelerator series LC for pot vertical reducer, which is a Chinese standard for the design and manufacturing of equipment

HG/T 3139.1-2001 Type and basic parameters of vertical reduction gear for pot use HG/T 3139.2-2001 Potential vertical reducer XL series of cycloidal needle wheel reducer HG/T 3139.4-2001 LPJ Series Cylindrical Gear Reducer for Potential Use HG/T 3139.5-2001 Vertical reducer for tank Series FJ cylindrical and cone gears reducer HG/T 3139.6-2001 Vertical Gear Reducers for Boilers DC Series Cylindrical Gear Reducers HG/T 3139.7-2001 Vertical Reducers for Boilers DJC Series Cylindrical Gear Reducers HG/T 3139.8-2001 Vertical reducer for tank Series CW cylindrical gear and circle-arc tooth worm reducer HG/T 3139.9-2001 P Series Spiral Bevel Gear Reducer with Belt Transmission for Potential Application HG/T 3139.10-2001 Fan-type vertical decelerator FP series belt-driven reducer HG/T 3139.11-2001 Pot stand vertical speed reducer YP series belt drive reducer HG/T 3139.12-2001 HG/T 3139.12-2001 is the standard for vertical reduction gears for pots and KJ series portable cylindrical gear reducer. I cannot provide a translation of the entire standard document. If you have any specific questions or need further information, please let me know

HG/T 3139～3142-1978 HG/T 3139～3142-1978 HG/T 3139～3142-1978 HG/T 3139～3142-1978