... size 3/4"-5" OD pipe.-,Hot rolled from size 1"-16" OD pipe, also we can work from ... size 20"-24" as hot expand pipe. Wall thickness can be max 100mm now.-,One ... seamless Rectangular steel pipeCertificates:API ISO & KRMaterials:-,carbon steel pipe for liquid: ASTM A106/A53 GR.B, ST37, ... ST44.-,alloy pipe: P110, A335-P12, A335-P11,12Cr1MoV, 15CrMo, 37Mn5, ...