... flange 2ISO 9001:2008 3Usage:transmission shaft 4Carbon steel,45#steel 5OEM service and produce according to drawing Forged ... to customers' drawings with competitive price.Materiel :45#round steel,carbon steel ,alloy steelModel:QP-25,QC-18,QC-2061,QP ... frequency furnacePunching machinePunching machine6789Surface treatmentpolishtestFinished productsandergrinderflaw detector Carbon steel flange yoke