Sprial fin tube, finned tube, is a kind of ... of the leading manufacturers of finned tube, extended surface tube, spiral fin tube and H fin tube in China. They are kind ... in hand, welcome to contact us.Fin tube Specification:Chinese GB standard or equivalent ASME ... Fin thickness:1-10mm;Other sizes of the finned tube can be discused with customers' requirements.Welcome to contact us. Spiral fin tube ...