Product: elliptical fin tube Specification: Chinese GB standard or equivalent ASTM standard Material: stainless steel, carb Product: elliptical fin tubeSpecification: Chinese GB standard or equivalent ASTM standardMaterial: stainless steel, carbon steel, copperBare tube size: 36mm*14mmFins Pitch:3mmFins size:55mm*26mmFin thickness:0.4mmThe size of the finned tube can be discused with the client's ...