"Long": that is, the dispute period of the contract is long, the construction period is long, and the execution period of the construction contract is also long.
"More": There are many terms in the contract, more than other types of contracts.
"Wide": involving a wide range, the construction contract involves not only the parties, but also laws and regulations, as well as the interests of local governments, competent departments, other units, third parties and individuals.
"Strict": the construction contract has strict requirements for the contractor, such as qualification certificate, business license, safety production certificate, enterprise grade certificate, and relevant procedures for foreign enterprises to enter local construction.