... :8-15mmcertificate:API 5L ISO9001-2008 1 inch stainless steel round tube Type1 inch stainless steel round tube Size16-1200mm(OD)Wall thickness2.5-75mm ... other advanced inspection skills.Product range: various sizes of stainless steel, alloy steel, carbon steel flange, elbow, tee, reducer, pipe cap, big bend ... medium-pressure, and international and domestic standards. 1 inch stainless steel round tube