... pipe Size:1/2''-72'' Specification:73*5.16 Certification:API Product:API 5l x46 steel pipeSize:1/2''-72'' ... after receiving the formal order. Specifications:1)Standard:ANSI,ASTM,API,DIN,GB,JIS.2)Material:A10GrA, ... TP304L,TP316L,A335,P5,ST37,ST35.8,ST52,1.0309.3)WT:SCH5,SCH10,SCH20,SCH40, ... Structure,use,water,transport,building,machinery,traffic,aviation,oil development ect.5)Tensile strength:390MPA.6) ...