parts design scheme selection

selection of parts

Spare parts and operational replacement parts

addition coefficient selection in equipment selection

GT selection rules (=Gamow-Teller selection rules)

railway route selection；railway location；approximate railway location；location of railway route selection

Route Selection and Station Site Selection

site selection and capacity selection

variable selection and value selection

10 parts per million

1-set Seal parts

30 parts ancient rh

30CrMnSiA steel parts

3D non-axisymmetrical parts

3D parts

3D standard parts

3D Standard Parts Libraries

3-dimensional parts

500 parts per million