... 40*20 , 40*40 , 45*75 , 48*23 , 48*48 , 50*25 , 50*50 , 55*13 , 60*40 , 60*60 , 70*30 , 73*43 , 80*40 , 80 ... *60 , 80*80 ... , 95*45 , 100*40 , 100*50 ,100*100 , ... 25*45,25*50,20*58,30*60,40*75,34*80,20*100,40*96,50*110,31*120e) wall thickness ...