Alloy Tubing, Seamless Tubing, Nickel Alloy Tubing manufacturer / supplier in China, offering Nai-Lok 254 Smo Pipe ASTM A269 S31254 Seamless/Welded Tubing 1/2X1.65mmx6000mm Bright Annealing for Petrochemicals Seawater Pipelines, Nai-Lok Alloy 400 Tube and Pipe ASTM B163 3/8 Seamless Stainless Steel Tubing for Chemical and Petrochemical, Nai-Lok S31703 Stainless Steel Ss317 Seamless Tube for Vessels Used in Chemical Processes and so on.