室外铺路用天然小方石检测
DIN 18332-2016德国建筑合同程序(VOB).第C部分:建筑合同通用技术规范(ATV).天然石工程
The document specifies the general technical conditions of contract which have to be fulfilled in Natural stone work with regard to materials, execution of work, associated and special tasks and the settlement of accounts.