按部颁标准管理是预防“四大”伤害的最好答卷天津市政工程局我同所属六个企业公司，十余个事业管理单位，计３１０００多名职工。主要承建道路、桥梁、深槽、排水、混凝土构筑物等的施工和管理。其工程特点，大型、重型设备多，施工现场、养管单位用电多，高空、深槽危险... According to ministerial standard management is the best answer to prevent the “big four” injury Tianjin municipal engineering bureau with my own six companies, more than 10 business management units, more than 31,000 workers. The main construction roads, bridges, deep grooves, drainage, concrete structures such as the construction and management. Its engineering features, large, heavy equipment and more, construction site, raising electricity control unit, high altitude, deep trough dangerous ...