Delivery: 3 seconds (Download full-editable-PDF + Invoice). Quotation: Click GB/T 12897-2006>>Add to cart>>Quote Editable-PDF Preview (Reload if blank, scroll for next page)
See Chinese contents: GB/T 12897-2006 GB/T 12897-2006: Specification for the first and second order leveling
This standard specifies the layout principles, leveling methods, and accuracy indicators for the establishment of the first and second order leveling networks throughout the country. This standard applies to the layout and survey of the state first and second order leveling network. Regional precise leveling networks can also make reference to it.
