Mandrel bar is an important tool for producing seamless pipes. Our mandrel bar specification for MPM, PQF and FQM is Ф80~Ф370 mm, length 2500~13000 mm and material AISl H13 or 4Cr5MoSiV1 or X40CrMoV 05 11. We can produce as per customer design drawing and required materials as well as provide complete design drawings.