... , 50 , 50.8 , 56 , 57 , 60, 63.5 , 76.2 , 80 , 89 , 101.6 , 108 , 114 , 127 , 133 , 141 , 159 , ... , 60*40 , 60*60 , 70*30 , 73*43 , 80*40 , 80*60 , 80*80 , 95*45 , 100*40 , 100*50 ,100*100 , 120*60 ... ,38*76,43*74,45*75,48*76,40*80,55*93,60*90,46*100,50*107,70* ... 105,58*115,50*120,80*120,63*133,50*150d) Flat oval pipe : ( ... 45,25*50,20*58,30*60,40*75,34*80,20*100,40*96,50*110,31*120e) wall ...