Quality evaluation and control of engineering piles,the study of buiding materials sampling test and samplign program,metrology accreditation of constructon quality testing unit and approval of laboratories.
Quality evaluation and control of engineering piles,the study of buiding materials sampling test and samplign program,metrology accreditation of constructon quality testing unit and approval of laboratories.
工程桩质量控制与质量评估，建筑材料抽样检验程序与抽样方案研究，建筑工程质检机构计量认证与实验室认可。