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近年来,国内许多城镇街道上的铸铁雨水井箅子和检查井盖大量丢失,不仅造成巨大的经济损失,而且影响街道的正常排水,甚者造成人员伤亡和车辆损坏事故。仅在哈尔滨市城乡结合部位,每年因丢失铸铁箅子造成的经济损失高达40万元。因此,为城市排水事业寻找一种用新材料制作的雨水井箅子和检查井盖,以代替铸铁箅子和井盖乃是当务之急。在原哈尔滨市排水事业管理处的组织和领导下,于1994年成立了有哈尔滨建筑大学、哈尔滨市玻璃钢厂参加的联合研制组。经一年研制,于1995年在哈尔滨市7个区11个排水管修所,
In recent years, the loss of cast iron rainwater wells and manhole covers on the streets of many towns across the country has not only caused huge economic losses, but also affected the normal drainage of streets and caused casualties and vehicle damage accidents. Only in Harbin urban and rural areas, each year due to the loss of cast iron prickly heat caused by up to 40 million. Therefore, it is imperative to find a rainwater pitcher and manhole cover made of a new material for the urban drainage project instead of cast iron buckets and manhole covers. Under the organization and leadership of the former Harbin Drainage Management Office, a joint research group with Harbin Jianzhu University and Harbin glass steel mills was established in 1994. After a year of research and development, in 1995 in Harbin City, seven districts 11 drainage repair,