... 301,304 4. OEM HTAF brand stainless steel tube for stair handle with ISO and SGS certificate ... 201,301,3044. OEM stainless steel tubing and pipeSpecification of stainless steel tube: Name stainless steel tubeItemsSquare pipes, round pipes, oval ... tower, etc.CertificationISO/SGSExport Markets North America, South America, Eastern Europe, Southeast Asia, Oceania, Mid East, Eastern Asia, Western Europe ...