色亚洲一区,欧美一级高清视频在线播放,a毛片免费全部在线播放**,免费在线观看色,国产一级高清,国内精品欧美久久精品,欧美尻逼视频

Recently, Xiamen Holsin Engineering Testing Co., Ltd., a subsidiary of C&D Holsin Engineering Consulting Group, passed the 2022 construction industry (testing institution) credit rating evaluation and was given a 2022 construction industry (testing institution) AAA credit rating by the China Construction Industry Association, making it one of the highest AAA credit ranked testing institutions.

Since its establishment, Holsin Testing has focused on the inspection and testing of highways, bridges, tunnels, water transport, municipal engineering, housing construction, rail transit, railways, and other civil engineering projects as it provides customers with comprehensive, cross-phase, and integrated project life cycle testing and consulting services.