在毛主席“工业学大庆”的教导指引下,我厂广大干部群众大力开展技术革新技术革命运动,用熔模铸造方法浇出了塑料凉鞋的模具一鞋帮、鞋楦。浇出的模具精加工一下就可使用。塑料凉鞋的模具以前一般用机械加工和钳工相结合,成本高,周期长,钢材利用率低。据无锡塑料六厂介绍,原来开一付模具需 Under the guidance of Chairman Mao’s Daqing in Industrial Science, the cadres and masses in our factory energetically carry out the technological innovation and technology revolution movement and cast the plastic upper and the shoe last of the plastic sandals by investment casting. Pour out the mold finishing can be used. Plastic sandals used to die before the general machining and fitter combination of high cost, long cycle, low utilization of steel. According to Wuxi Plastic Factory VI, the original open to pay a mold required