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1·Tapered threads have been extensively used on pipeline connection, and the quality of thread is a key to ensure satisfactory coupling.

逐渐变小线已经普遍地在渠道衔接上被用，而且线的质量是一支确定满意的结合关键。

2·Not just an added reinforcing ring, this unique pre-compression design compensates for expansion forces generated from normal tapered pipe thread joint make-up.

不仅仅增加了加固环，这种独特的预压缩结构能够抵消常规锥形管道螺纹连接结构所会产生的膨胀力。