Z. I. H. International offers Carbon Steel Pipes and Tubes. Z. I. H. International manufactures Ferrous and Non Ferrous metal products. The Carbon Steel Pipes and Tubes are manufactured using quality of steel and alloy. The standard sizes range from 15 NB up to 1200 NB IN SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160. These are in various forms like seamless / ERW / welded pipes in round and square shapes. The other types are alloy steel pipes and tubes and many more.