In 1973, according to the (73) Qing Ji Zi No. 32 document issued by the Ministry of Light Industry, our company decided to independently develop QD6 IS bottle making machine based on QD4 model and modify its material feeder based on the 3240A model.

In December 1977, the QD6 bottle making machine independently developed by our company passed the verification in Yantai, and its scaled production was approved.

In March 1978, we introduced 8-group double material drop bottle making machine from the United States for surveying and mapping.