Number of springs included 118 PCs. 110 on a sides and 8 on a corners of a trampoline.
Side springs • Material: a-1 GOST 9389-75 • Bar diameter, mm: 3.0 • Length in free state, mm: 258±1.6 • Spring diameter, mm: 28.9±0.24 • Spring force at pre-deformation F1, H: 196.7±19.7 • Spring length at pre-deformation L1, mm: 425
Corner springs • Material: b-2 GOST 9389-75 • Bar diameter, mm: 4.0 • Length in free state, mm: 256±2 • Spring diameter, mm: 40±0.48 • The force of the spring when pre-deformation of F1, H: 148,6±14,9 • Spring length at pre-deformation L1, mm: 380