Product:API 5l x46 steel pipe Size:1/2''-72'' Specification:73*5.16 Certification:API ... ,SCH20,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XXS.4)Usage:Structure,use,water,transport,building,machinery,traffic,aviation,oil development ect ... early reply will be highly appreciated API 5l x46 steel pipe