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捷克斯洛伐克在 CTM 型的自动压机中,使用了液-机联合深引伸模具(见图)。这种模具的主要特点是凹模直径不受工件外径的限制,而是大大超过其尺寸,并在凹模中间贮以油液。凹
Czechoslovakia In the CTM type of automatic press, a liquid-machine combined deep drawing tool (see picture) was used. The main feature of this mold is that the diameter of the die is not limited by the outside diameter of the work piece, but greatly exceeds its size and the oil is stored in the middle of the die. concave