Level is here medium, solder as whole technical progress, began to use in the structure of machine tool product that partial enterprise designs in proper motion solder structure, like Jinan the large part such as the base of the mechanical compressor product of 800 tons of above of factory of the 2nd machine tool, beam is mixed receiver spare parts;

Qiqihaerdi factory of 2 machine tools, the J81 that developed a design 1973 - the 1250 compressor that cut a margin used weldment first, spare parts of main structural member is base, pillar and nose, the biggest solder spare parts weight is 25 tons; This factory was in 1978 ～ again 1979 Z41, 30 model the lathe bed of machine of nut cold Dui, TA88 - on the high-pressured container spare parts of 200 cold extruder, used solder structure. These soldering structural adoption, promoted machine tool industry to solder technical development.