Professional pipe test plugs have the pontoon system which enables to drain the entrained air during the test of pipeline having the elevation difference, with water as well as they act as dulling pipelines temporarily. Professional pipe test plugs are made from SBR+NR mixed rubber and strong clothes. Professional pipe test plugs are able to run between -30°C and + 70°C. They are tested at the 1, 3 times higher than their working pressure and they have ultrahigh bursting pressure.
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