... stage): 18.4-30 (W16L, 10/12), 18.4-34 (W16L, 10/12/14), 18.4-38 (W16L, 12), 20.8-38 (W16L ... , 10/12);2.Section width(±4%): 467, 467, 467, 528; ... 3.Outer diameter(R-1, ±1.2%): 1550, ... 1655, 1755, 1835;4.Pressure (Kpa): 180/230, 180/230/260, ...