手推胶轮车是我国工农业生产战线上主要的短途运输工具之一。为了提高手推胶轮车轮胎、轮圈的使用寿命,自一九六二年以来,一些有关工厂密切配合,对手推胶轮车用的硬边胶轮和轮圈进行试制、试验,并取得了一定的成绩。一九七六年十月,石化部和一机部在河南许昌市主持召开了手推车硬边胎、轮圈的鉴定会。在鉴定会上,来自全国的五十多个单位的代表一致认为:这种轮胎、轮圈使用性能优良,可以定型成批生产,并在全国有计划地逐步推广。徐州橡胶厂、青岛车辆厂等十一个单位于一九七三年组成协作组,试制出新型 Hand pushing rubber tire truck is one of the major short-distance transportation tools on the industrial and agricultural production front of our country. In order to improve the service life of rubber tire tires and rims, since 1962, a number of factories have been cooperating closely to test and test hard-rubber tire wheels and rims for rubber tire truck manufacturers A certain result. In October 1976, the Ministry of Petrochemical Industry and a machine-building department presided over the appraisal meeting of hard-rimmed tires and rims of trolleys in Xuchang City, Henan Province. At the appraisal meeting, delegates from more than 50 units all over the country agreed that this kind of tires and rims are of excellent performance and can be put into mass production and gradually rolled out nationwide and in a planned way. Xuzhou Rubber Factory, Qingdao Vehicle Plant and other eleven units in 1973 formed a collaborative group, trial production of a new type