Between each knot of machine barrel, and between machine barrels and bushes is favorable exchangeability.
每节机筒间 、 机筒与衬套间具有良好的互换性.
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H 7 series is of wide application, good exchangeability and easy replacement by using non - inbuilt sealing ring.
本系列应用广泛, 互换性强,密封环 非 嵌入,替换方便,推环由传动搭子卡住.
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