Метка: Polymer
-
Compare ABEC 5 and ABEC 7 roller bearings
Any roller skates have several bearings, the number of which depends on the number of wheels in the design: each has 2 pieces. All bearings used in roller skates are standardized. Nevertheless, it is worth having at least a general idea about them, especially when it comes to the accuracy of their manufacture — this…
-
Compare eco-leather and artificial leather
The modern textile industry regularly uses the latest polymeric materials. This is due to the fact that they are cheaper and often more beautiful than natural ones, and in terms of operational properties they are not inferior to the “original”. And this is especially evident in the «leather» products. So, clothes, shoes and accessories made…