R series R series R series M2022-03-18T12:02:07+01:00Tags: ISO 10243 2010, ISO 10243:2010, R 10, R 13, R 16, R 20, R 25, R 32, R 40, R 50, R 63, R10, R13, R16, R20, R25, R32, R40, R50, R63| Strong load springs (ISO 10243:2010)