there are none
You must indicate what "this preamble" is so we can compare it to the US Preamble.
Diction
Preambles in bills of quantities provide a general overview of the project, specifications, terms, and conditions. They typically include information on the scope of work, materials to be used, quality standards, and any specific requirements that apply to the project. Preambles help to set the context for the detailed bill of quantities that follows.
http://www.iccwbo.org/incoterms/preambles/pdf/FCA.pdf
Social Contract
Social policy
social policy
Preambles are the work requirement prior to a task performed and the policies they are bound by
No, it should be CONSTITUENTS. The Preamble is the introduction to the Constitution.
"We the people", it comes from the people.
None. How many are in yours? The internet is a global place. The answer to this will be different depending where you live in the world, China, France, Australia, US, etc. Try "How many preambles are there in the .......... constitution? Put your country where the ......... are. (Yes I guess it is US where you live since you ignored the rest of the world but it could be somewhere else.)
ideas that are common in constitution of India, america south africa