For citations:
GUMEN V.R., KOVRIGA V.V. Development of roughness and decrease in hardness of abrasive wear surface in various types of polyethylene. Part II. Plasticheskie massy. 2022;1(5-6):47-49. (In Russ.) https://doi.org/10.35164/0554-2901-2022-5-6-47-49