... are made from premium quality raw material.Monel 400 Tube Designation: UNS N04400 / W.Nr. 2. ... , ERW, Welded, Fabricated.Form: Round, Square, Rectangular, Hydraulic, Etc. Other: Hydraulic Tube, Horn Tube, Capillary Tube, Boiler Tube, Precision Tube, IBR TubeEnd ... Oil and Gas, and Marine industries. Process method: Cold drawn, Cold rollingFinishing: Heat treatment, annealed, acid washing, manual and ...