When applying for welding inspection of pressure vessel s, the Manufacturer shall fill up the Application Form for Welding Inspection of Pressure vessel s (Annex 32) and submit the documents shown below:1. One (1) copy of Material certificate.2. Two (2) copies of specification of welding (Annex 33) and one (1) copy of construction locations classification map.3. Two (2) copies of detailed structure drawing and strength calculation sheet.4. Welding technician certificate of sealing constructors.5. One (1) cope each of the qualification certificate for the type inspection of manufacturing facilities, welding procedure and welding procedure qualification examination records.