DIN EN ISO 2503 : 2015 Title: Gas welding equipment - Pressure regulators and pressure regulators with flow-metering devices for gas cylinders used in welding, cutting and allied processes up to 300 bar (30 MPa) (ISO 2503:2009 + Amd 1:2015) (includes Amendment :2015) Year: 2015 Publisher: DIN Media GmbH Availability: Within 1-2 working days