? Application ? It can be applied to oil and gas well production that contain carbon dioxide ion chiorine ion caidic medium, meanwhile,in adapt to the high temerature and the bad environment of carbon dioxide and a small amonut of hydrogen sulfide coexist,?We Special Steel Pipes developed a series of super 13Cr pipe,the product not only has a higher strength and excellent corrosion resistant properties,but also has good low temperature toughness.