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简述了PZK-5/40-6型与PZK-14.3/40-6型膨胀机调节机构顶头滑丝带来的问题,介绍了顶头的改进,已用三年,情况良好。图1。
The problems caused by sliding head of PZK-5 / 40-6 type and PZK-14.3 / 40-6 expander adjustment mechanism are briefly described. The improvement of the head is introduced. It has been in good condition for three years. figure 1.