What are the commonly used spare parts listed in the bid, such as pumps, containers, etc.? How many are in stock? Are there any regulatory requirements?

There are no strict regulatory requirements regarding which ones are used commonly and which ones are used as backups, or how many of each should be used. The strict regulatory requirements here refer to the provisions described in the regulations using terms such as \"must\", \"strictly prohibited\", and \"should\", and do not include those provisions described with optional terms such as \"may\". When bidding, if the scope of the bid is relatively small or it includes only the equipment rather than the entire process unit, then you will generally be told exactly how many pieces of equipment are required. As a supplier of that equipment, you don’t need to know what spare parts are needed. If the equipment for an entire process segment along with the entire process is outsourced, then it depends on the process design to determine how much of the equipment should be in regular use and how much should be in reserve; there are no strict standard guidelines specifying exactly how many units must be in use and how many in reserve under certain operating conditions. This is where the value of designers comes into play. If designers have extensive experience and a thorough understanding of the overall process requirements, they can form an initial assessment of the entire process in a short time once they receive the relevant specifications. They are able to estimate the specifications and quantities of the main equipment, which enables them to prepare more accurate proposals and quotes.