24
2024
-
01
2020
Author:
August KMMC was awarded a utility model patent certificate for friction liners for kilometre deep wells.
August KMMC was awarded a utility model patent certificate for friction liners for kilometre deep wells.
24
2024
-
01
Author:
August KMMC was awarded a utility model patent certificate for friction liners for kilometre deep wells.
August KMMC was awarded a utility model patent certificate for friction liners for kilometre deep wells.