nickel tube 1.nickel200,nickel201 2.Meterial: N4,N6 3.ISO9001:2008certification 4.purity: 99.6% nickel tube1) nickel tube, nickel pipe, seamless nickel pipe,seamless nickel tube2) Material: Ni200 Ni2013) Standard: ASTM B1634) Size:OD19*2*4000mm or as per5) Application: heat exchanger, condensser6) Hight anti-corrusion with good quality