The tubes made according to DIN1629 . Size from OD15.88mm to OD88.9mm. Surface painted or oiled. The tubes made according to ASME SA179,SA192,SA210,BS3059,JIS G 3461,DIN17175,DIN1629 and etc. Size from OD15.88mm to OD76.2mm.Seawothy packing.Delivery time depend on the quantity ordered. boiler tube DIN1629