Wrench type, with double enlarging ring and canautomatic gas discharge and pressure release.
Thread Size
ZG1/4”
ZG3/8”
Tube Size (ΦO.D.)
6.4、7、7.5、8、8.5
9、9.5、10、10.5、
11、11.5、12、12.5
13、13.5、13.8、14
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