All Redpine Ring Type Joints are manufactured from traceable materials and are supplied to NACE specifications upon request. Each Ring Type Joint is identified by low stress stamping with style, ring number, API license number, material reference, Product Specification Level (PSL), a unique Dehu material identification number, and the month and year of manufacture. Such full and comprehensive traceability, from material source with mill certification to final supply, is an essential requirement in the company’s strict quality assurance procedures and compliances API 6A requirements.