What are the boiler files?
Manufacturing units are: a full set of drawings, raw materials storage records and material books, process cards, inspection records, inspection reports and
The use of units are: product certification and a full set of furnace data, the installation of qualified acceptance documents, operating permits, operating records and peacekeeping
Testing film, water pressure test report, storage sales account records, product certification, and so on.
Boiler manufacturing units and boiler use units of the file is not the same:
