Size: Zgl have got three completer production line as: -, cold drawn from 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 new productionline for seamless rectangular steel pipe Certificates: Api iso & kr Materials: -, carbon steel pipe for liquid: astm a106/a53 gr.B, st37, st44. -, alloy pipe: p110, a335-p12, a335-p11, 12cr1mov, 15crmo, 37mn5, 30crmnsi, 27simn. -, for pipeline: api 5l gr.B, x42, x52, x60, x70. -, for construction: high thickness of st44, st52. -, for mechanical process: c45, sae1045. We do believe we are a very helpful supplier in this business scope. We deeply hope there is a channce for us to establish business-relationship with you in future. Welcome to your inquiry and visit our mill. Packing in bundles or packing according to customer's request