... , anti-wearing, good-appearance, excellent mechanical properties. 10.Product Size: Round pipe:O.D.:9.5,12 ... .1,20,21,22,23,25.4,28,31.8,33,35,36,38.1,40,41 ... Length:3000mm to 6000mm. Square pipe:Side length:10*10,12*12,15*15,18*18,19*19, ... ,24*12,24*24,25*25,28*28,30*30,23*36,36*36,38*38,40*40 ... 50*50,20*10,25*13,30*15,38*25,40*10,40*20,50*25,60*30,75*45, ... ≤0.04≤0.045≤0.045Mn8.5-10.57.5-10≤2.0≤2.0≤2.0≤1 ...