N'ikwu okwu n'ozuzu, API 5L na-ezo aka na API 5L line pipe, nke na-esi na ala mmanụ, gas, mmiri, na-ebuga site na pipeline gaa na ụlọ ọrụ mmanụ na gas. dị ka mmepụta usoro na tube oge ntoju ji dị iche iche shapes, api 5l nwere ike kewaa n'ime api 5l enweghị nkebi ígwè pip ...
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