... .Size :OD6~630*WT1.5~30 1.alloy steel pipe 2. cold drawn seamless stainless steel ... Flaring Test,Corrosion Test,Flattening Test and so on.accurate aluminium alloy steel pipeO.DO.D toleranceW. ... Middle east, Africa, North and South America, East and West Europe, South and southeast Asia,AustraliaPlace of OriginChinaProductivity3000Ton ... HEBEI SHIPENG STEEL PIPE CO., LTD alloy seamless steel pipe and tube