1978年轻工业部、水利部组织11个省市33个单位,成立了塑料喷灌设备全国联合设计组,经过两年努力,研制成功了两种四个规格塑料管道和四个不同型号喷头。1980年由两部组织鉴定,同意定型,批量生产。目前,吉林省海龙县塑料厂、通化县塑料厂已批量生产,见39页广告。一、管道规格塑料喷灌用的管道,除专门配的管件外,还有很大一部分采用金属水暖管件,为满足目前发展喷灌需要,塑料管道尺寸采用英制系列,规格见表1。 In 1978, the Ministry of Light Industry and the Ministry of Water Resources organized 33 units in 11 provinces and municipalities to set up a national joint design team for plastic sprinkler irrigation equipment. After two years of hard work, two types of plastic pipes of four specifications and four different types of nozzles were successfully developed. In 1980 by two organizations identified, agreed stereotypes, mass production. Currently, Hailong County, Jilin Province Plastic Factory, Tonghua Plastic Factory has been mass-produced, see 39 ads. First, the pipe specifications Plastic sprinkler pipe, in addition to the special pipe fittings, there is a large part of the use of metal plumbing fittings, in order to meet the needs of the current development sprinkler, plastic pipe size using the English series, specifications in Table 1.