Thread the wide end through the top of the knot and pull it down to tighten.
让宽端从结里传过来，然后向下拉紧。
True Union Valves - remove valve; CAREFULLY tighten seal carrier (located on inlet end of body).
单进入阀门- 小心紧固单活接头螺母。
Tighten the elastic a little. Pin the free end to the facing.
把松紧带收紧一点用大头针把没固定的一端钉在贴边上。
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