a - 75, t - 8, R - 9, cm² - 11,5, kg/m - 9,03,

a - 75, t - 12, R - 9, cm² - 16,6, kg/m - 13,1,

a - 90, t - 10, R - 11, cm² - 17,1, kg/m - 13,5,

a - 100, t - 7, R - 12, cm² - 13,7, kg/m - 10,7,

a - 150, t - 10, R - 16, cm² - 29,3, kg/m - 23,

a - 150, t - 12, R - 15, cm² - 34,8, kg/m - 27,3,

a - 200, t - 18, R - 18, cm² - 69,1, kg/m - 54,3,

a - 200, t - 20, R - 18, cm² - 76,4, kg/m - 59,9,

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,