a - 250, t - 36, R - 18, cm² - 163, kg/m - 128,

a - 30, b - 20, t - 4, R - 4, cm² - 1,86, kg/m - 0,

a - 45, b - 30, t - 4, R - 4,5, cm² - 2,87, kg/m - 0,

a - 65, b - 50, t - 5, R - 6, cm² - 5,54, kg/m - 0,

a - 100, b - 65, t - 8, R - 10, cm² - 12,7, kg/m - 0,

a - 135, b - 65, t - 10, R - 11, cm² - 19,1, kg/m - 0,

a - 150, b - 90, t - 10, R - 12, cm² - 23,2, kg/m - 0,

a - 150, b - 90, t - 12, R - 12, cm² - 27,5, kg/m - 0,

a - 150, b - 100, t - 12, R - 12, cm² - 28,7, kg/m - 0,

a - 200, b - 100, t - 15, R - 15, cm² - 43, kg/m - 0,