... the automotive, motorcycle, engineering machinery, jack, electrical tools and sporting equipment and other areas10-180×2-24 ... resistant, corrosion-resistant Seamless pipe for Petroleum, chemical, electric power,Boiler industry16-824×2-100 Casing pipe J55 N80 ... /T13295-2003 ISO2531/2003- Public works, mining, textile, electric power, boilers, drinking water, machinery, military industryDN80-1500-square ...