heavy wall seamless steel pipe for hydraulic pillar Thickness: up to 80mm Diameter: up to 32" Heavy wall seamless steel pipe for hydraulic pillarmaterial: 20#,1020, GrB,X42,X52,X56,X60Thickness: up to 80mmDiameter: up to 32"Ending: PE or BESurface: black steel or with black and varnish paintingAplication: making Mechanical Parts,hydraulic pillar pipe