[Xi'an] Pile foundation engineering construction contract, in WORD format, 7 pages in total. The contract is a high-rise residential construction pile foundation contract. The main content of the project is: the whole process from construction preparation to completion of the design requirements of the pile foundation engineering, including: pile hole forming, commercial concrete pouring into piles, mud and sludge treatment and transportation, reinforcement cage processing, manufacturing and hoisting, chiseling concrete pile head,