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Zinc 220GSM galvanized steel pipe erw threaded couplings hot dipped galvanized pipe
hot dipped pipes, the zinc coating usually much higher than the pre -galvanized steel pipes, zinc coating : 200G + , usually 220G , if client need higher zinc we can make the zinc coating as client requirment such as 300, 500, 800G we can make the thread one side or both side with caps, thread and coupling, as client requirement. hot dipped pipes play more good role on the outdoor using such as bridge pipes, warehouse, street lamp, and telegraph poles, and also for the liquid pipes, useful widely.
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