High pressure heater u-shaped tube

Common standards, national standards:GB/T14975-2002 GB/T14976-2002 GB13296-91 GB13296-2007And so on, the foreign standards:ASTM A213/A 213M ASME SA-213/SA-213M ASTM A312/A 312M ASME SA-312/SA-312M ASTM A789/A 789M ASME SA-789/SA-789M EN 10216-5 DEN 17458In addition to the above standard, but also can carry out other international standards, according to user requirements or according to customer's actual requirements, the two sides make joint special technical conditions.
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High pressure heater u-shaped tube