NF P21-205-2012
建筑工程.与金属板紧固件或角撑板相连的木结构框架.第1-1部分:技术模式条款的合同单.第1-2部分:材料选择的一般标准.第2部分.专用管理模式条款的合同单
Building works - Timber structures connected with metal plate fasteners or gussets - Part 1-1 : contract bill of technical model clauses - Part 1-2 : general criteria for selection of materials - Part 2 : contract bill of special administrative model clau