STAINLESS STEEL HIGH FREQUENCY TUBE MILLSGallium Specialises in ERW HF SS High speed Tube mills for Stainless welded steel Pipes & Sections.Range Of Tube Mills: SS 200, 300, 316, 409 L1) 10 mm OD ~25.4 mm OD2) 12.7~50.8 mm OD3) 12.7 mm ~63.5