A na-eji valvụ ntọhapụ ikuku na pipeline ikuku nke sistemu kpo oku nke onwe, sistemu kpo oku nke etiti, igwe kpo oku, ikuku ntọhapụ nke etiti, kpo oku ala na sistem ọkụ anyanwụ. Ụkpụrụ na-arụ ọrụ: Mgbe enwere oke gas na usoro, gas ga-arịgo elu pipeline a ...
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