... .30 degree &g=1.2 degree m/W,depth of laying=0.8m,laid in trefoil touchingA1872272673033383834364815342.Drawn into ducts,ground ... .30 degree &g=1.2 degree m/W,depth of laying=0.8m,laid singlyA1611912272582943293784184723.Laid in air in trefoil touching ...