Regarding the number of copies of the equipment drawings and stamping
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Regarding the equipment manufactured by manufacturers based on the design drawings provided by the design institute: what are the requirements regarding the number of copies of the drawings (are those with the pressure vessel seal required or not)? What are the requirements for the number of drawings when there are multiple units of the same equipment (identified by ABC..... after the tag number)? I asked for advice!
There are no specific regulations. As requested by the user, 6–8 copies of similar equipment are required (5 sets for Party A, of which 2 sets are to be kept as original archives while the remaining copies go to the supervisor and the construction unit), and all of these copies must be stamped. Reference: http://www.doc88.com/p-8059220100911.html
We use one machine with two stamping heads: one to create the documents and another for the process-related stamps
The number of copies of the drawings requiring the pressure vessel seal (for equipment that needs supervision and inspection) is two copies per piece of equipment. One copy for the manufacturer, and one copy provided to the customer. One copy of the drawing without a stamp is sufficient.