... 19 * 19 , 20*10 , 20*20 , 22* 22 , 23* 11 , 23 *23 , 24* 12 , 24*24 , 25*13 , 25* ... c) Elliptical /oval pipe size (mm)7.5*11.5,9.6*15,10*20,13.5*18.5 ... 74,45*75,48*76,40*80,55*93,60*90,46*100,50*107,70*105,58*115,50 ... pipe : (mm)8*5,10*20,10*24,11*24.5,13*22,12*23,12*24,15*25 ... order quantity : 3 Ton 10) Supply ability :6000Ton / Month 11) Basic Informationa) Company Name : liaocheng huajian steel co., ltd. ...