ASTM A53 Seamless steel pipe OD:10-610mm WT:1.57-60 mm Material:API 5L Gr.B,X42,X52,ASTM A53 A106 Length: ... Treatment:galvanization,black painting or as clients' orderSpecial pipe:API PipeStandards:GB/T8163-2008,GB/T8162-2008,GB ... /T3087-2008,GB/T5310,API5L,API5CT,ASTMA106,ASTM A53,BS1387-1985,JIS G 3454,JIS G 3455, ... woven or as clients' requirementsDelivery time:ASAP ASTM A53 Seamless steel pipe